/* =========================================================
   易成佰 · 官网样式
   Palette: 墨绿 / 暖金 / 米白
   ========================================================= */

:root {
  --ink: #15211b;
  --ink-soft: #3c4a42;
  --muted: #6a776f;
  --line: #e2ddd0;
  --line-strong: #cfc7b6;
  --cream: #f6f1e7;
  --cream-deep: #efe7d8;
  --paper: #fffdf8;
  --green-950: #081d16;
  --green-900: #0c2a20;
  --green-800: #10362a;
  --green-700: #174b3a;
  --green-600: #1f624c;
  --green-500: #2c7a5e;
  --green-100: #dcebe2;
  --green-50: #eef6f1;
  --gold: #e3a83f;
  --gold-deep: #c8871f;
  --gold-soft: #f5dfb0;
  --gold-50: #fbf3e0;
  --red: #c9503a;
  --shadow-sm: 0 2px 8px rgba(21, 33, 27, 0.06);
  --shadow-md: 0 14px 34px rgba(21, 33, 27, 0.09);
  --shadow-lg: 0 28px 70px rgba(8, 29, 22, 0.18);
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 28px;
  --radius-xl: 40px;
  --container: 1180px;
  --header-h: 76px;
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC",
    "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-display: "Songti SC", "Source Han Serif SC", "Noto Serif SC",
    "STSong", Georgia, serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--cream);
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

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

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

::selection {
  background: var(--gold-soft);
  color: var(--green-900);
}

:focus-visible {
  outline: 2px solid var(--gold-deep);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--green-900);
  color: #fff;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 12px;
}

/* ---------- Layout helpers ---------- */
.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

.section {
  padding: 104px 0;
  position: relative;
}

.section--tight {
  padding: 72px 0;
}

.section--dark {
  background: var(--green-900);
  color: var(--cream);
}

.section--paper {
  background: var(--paper);
}

.section--cream-deep {
  background: var(--cream-deep);
}

.section-head {
  max-width: 760px;
  margin-bottom: 54px;
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green-600);
  margin-bottom: 18px;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
}

.section--dark .eyebrow {
  color: var(--gold-soft);
}

.section-title {
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.section-title .accent {
  color: var(--green-600);
  position: relative;
  white-space: nowrap;
}

.section--dark .section-title .accent {
  color: var(--gold);
}

.lead {
  margin-top: 20px;
  font-size: clamp(16px, 1.4vw, 18px);
  color: var(--muted);
  line-height: 1.85;
  max-width: 62ch;
}

.section--dark .lead {
  color: rgba(246, 241, 231, 0.7);
}

.lead--center {
  margin-inline: auto;
}

/* ---------- Buttons ---------- */
.btn {
  --btn-bg: var(--green-800);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s, color 0.25s, border-color 0.25s;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(16, 54, 42, 0.22);
}

.btn:active {
  transform: translateY(0);
}

.btn .arrow {
  transition: transform 0.3s var(--ease);
}

.btn:hover .arrow {
  transform: translateX(4px);
}

.btn--gold {
  --btn-bg: var(--gold);
  --btn-fg: var(--green-950);
}

.btn--gold:hover {
  box-shadow: 0 14px 30px rgba(200, 135, 31, 0.32);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--green-900);
  border-color: var(--line-strong);
}

.btn--ghost:hover {
  border-color: var(--green-700);
  box-shadow: none;
  background: rgba(16, 54, 42, 0.04);
}

.btn--light {
  --btn-bg: #fff;
  --btn-fg: var(--green-900);
}

.btn--outline-light {
  --btn-bg: transparent;
  --btn-fg: var(--cream);
  border-color: rgba(246, 241, 231, 0.34);
}

.btn--outline-light:hover {
  border-color: var(--gold);
  color: var(--gold-soft);
  box-shadow: none;
  background: rgba(255, 255, 255, 0.04);
}

.btn--sm {
  min-height: 42px;
  padding: 0 20px;
  font-size: 14px;
}

.btn--block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--green-700);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.text-link:hover {
  border-color: currentColor;
}

.text-link svg {
  transition: transform 0.3s var(--ease);
}

.text-link:hover svg {
  transform: translateX(4px);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background 0.35s var(--ease), box-shadow 0.35s,
    border-color 0.35s, height 0.35s;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  height: 66px;
  background: rgba(246, 241, 231, 0.9);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom-color: rgba(207, 199, 182, 0.6);
  box-shadow: 0 10px 30px rgba(21, 33, 27, 0.05);
}

.header-inner {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 36px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  box-shadow: 0 4px 12px rgba(16, 54, 42, 0.2);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-en {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--muted);
  margin-top: 3px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}

.site-nav a {
  position: relative;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-soft);
  padding: 8px 0;
  transition: color 0.2s;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--gold);
  transition: width 0.3s var(--ease);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--green-900);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  width: 100%;
}

.header-cta {
  margin-left: 8px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  position: relative;
  z-index: 130;
}

.nav-toggle span {
  position: absolute;
  left: 12px;
  width: 18px;
  height: 1.6px;
  background: var(--green-900);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s, top 0.3s;
}

.nav-toggle span:nth-child(1) {
  top: 16px;
}
.nav-toggle span:nth-child(2) {
  top: 21px;
}
.nav-toggle span:nth-child(3) {
  top: 26px;
}

.nav-open .nav-toggle span:nth-child(1) {
  top: 21px;
  transform: rotate(45deg);
}
.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}
.nav-open .nav-toggle span:nth-child(3) {
  top: 21px;
  transform: rotate(-45deg);
}

/* Dark header over hero */
.site-header--over {
  --header-fg: var(--cream);
}
.site-header--over .brand-name {
  color: var(--cream);
}
.site-header--over .brand-en {
  color: rgba(246, 241, 231, 0.55);
}
.site-header--over .site-nav a {
  color: rgba(246, 241, 231, 0.72);
}
.site-header--over .site-nav a:hover,
.site-header--over .site-nav a[aria-current="page"] {
  color: var(--gold-soft);
}
.site-header--over.is-scrolled .brand-name {
  color: var(--ink);
}
.site-header--over.is-scrolled .brand-en {
  color: var(--muted);
}
.site-header--over.is-scrolled .site-nav a {
  color: var(--ink-soft);
}
.site-header--over.is-scrolled .site-nav a:hover,
.site-header--over.is-scrolled .site-nav a[aria-current="page"] {
  color: var(--green-900);
}
.site-header--over .nav-toggle {
  border-color: rgba(246, 241, 231, 0.4);
}
.site-header--over .nav-toggle span {
  background: var(--cream);
}
.site-header--over.is-scrolled .nav-toggle {
  border-color: var(--line-strong);
}
.site-header--over.is-scrolled .nav-toggle span {
  background: var(--green-900);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 48px) 0 74px;
  background:
    radial-gradient(900px 520px at 78% 18%, rgba(227, 168, 63, 0.16), transparent 65%),
    radial-gradient(700px 500px at 12% 84%, rgba(44, 122, 94, 0.32), transparent 60%),
    linear-gradient(155deg, #0a241c 0%, var(--green-900) 48%, #0a2019 100%);
  color: var(--cream);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(246, 241, 231, 0.11) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: linear-gradient(90deg, #000 0%, transparent 62%);
  -webkit-mask-image: linear-gradient(90deg, #000 0%, transparent 62%);
  opacity: 0.35;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  right: -10%;
  top: 12%;
  width: 560px;
  height: 560px;
  border: 1px solid rgba(227, 168, 63, 0.14);
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 15px 7px 8px;
  border: 1px solid rgba(246, 241, 231, 0.18);
  border-radius: 999px;
  background: rgba(246, 241, 231, 0.05);
  color: var(--gold-soft);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 28px;
}

.hero-badge .dot {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--gold);
  color: var(--green-950);
  font-size: 11px;
  font-weight: 800;
}

.hero-badge .pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 0 rgba(227, 168, 63, 0.6);
  animation: pulse 2.4s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(227, 168, 63, 0.5);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(227, 168, 63, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(227, 168, 63, 0);
  }
}

.hero h1 {
  font-size: clamp(44px, 6.2vw, 82px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.035em;
  margin: 0 0 26px;
}

.hero h1 .gold {
  color: var(--gold);
}

.hero h1 .line {
  display: block;
}

.hero-sub {
  max-width: 54ch;
  color: rgba(246, 241, 231, 0.72);
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.88;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid rgba(246, 241, 231, 0.14);
  font-size: 13.5px;
  color: rgba(246, 241, 231, 0.64);
}

.hero-facts span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-facts b {
  color: var(--gold-soft);
  font-weight: 700;
}

.hero-facts .tick {
  color: var(--gold);
}

/* Hero product entry */
.hero-entry {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  padding: 10px 18px 10px 11px;
  border: 1px solid rgba(227, 168, 63, 0.34);
  border-radius: 999px;
  background: rgba(227, 168, 63, 0.08);
  color: var(--cream);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease),
    transform 0.25s var(--ease);
}

.hero-entry:hover {
  background: rgba(227, 168, 63, 0.16);
  border-color: rgba(227, 168, 63, 0.62);
  transform: translateY(-1px);
}

.hero-entry-tag {
  flex-shrink: 0;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--gold);
  color: var(--green-950);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.hero-entry-text {
  color: rgba(246, 241, 231, 0.9);
}

.hero-entry .arrow {
  flex-shrink: 0;
  color: var(--gold);
  transition: transform 0.3s var(--ease);
}

.hero-entry:hover .arrow {
  transform: translateX(4px);
}

/* Hero visual */
.exchange-visual {
  position: relative;
  width: 100%;
  max-width: 500px;
  aspect-ratio: 1;
  margin-inline: auto;
}

.orbit-ring {
  position: absolute;
  inset: 12%;
  border: 1px dashed rgba(227, 168, 63, 0.34);
  border-radius: 50%;
  animation: spin 46s linear infinite;
}

.orbit-ring::before,
.orbit-ring::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 18px rgba(227, 168, 63, 0.9);
}

.orbit-ring::before {
  top: -4px;
  left: 50%;
}

.orbit-ring::after {
  bottom: -4px;
  left: 50%;
  background: var(--green-500);
  box-shadow: 0 0 18px rgba(44, 122, 94, 0.8);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.orbit-core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 56%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border-radius: 50%;
  text-align: center;
  background:
    radial-gradient(circle at 32% 24%, rgba(255, 255, 255, 0.22), transparent 46%),
    linear-gradient(150deg, #1d5a45, #0d2f24);
  border: 1px solid rgba(227, 168, 63, 0.48);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.36),
    inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.orbit-core::after {
  content: "";
  position: absolute;
  inset: -14px;
  border: 1px solid rgba(227, 168, 63, 0.16);
  border-radius: 50%;
}

.core-label {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: rgba(246, 241, 231, 0.6);
  text-transform: uppercase;
}

.core-value {
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.core-sub {
  font-size: 12px;
  color: rgba(246, 241, 231, 0.62);
}

.float-card {
  position: absolute;
  width: 45%;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 253, 248, 0.96);
  color: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 20px 44px rgba(4, 18, 13, 0.32);
  backdrop-filter: blur(8px);
  animation: floaty 6.5s ease-in-out infinite;
}

.float-card .fc-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--green-600);
  background: var(--green-50);
  border-radius: 999px;
  padding: 2px 8px;
  margin-bottom: 8px;
}

.float-card strong {
  display: block;
  font-size: 14.5px;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.float-card .fc-value {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.float-card .fc-value b {
  color: var(--gold-deep);
}

.card-a {
  top: 2%;
  left: -2%;
  animation-delay: -1s;
}
.card-b {
  top: 20%;
  right: -5%;
  animation-delay: -3.2s;
}
.card-c {
  bottom: 2%;
  left: 4%;
  animation-delay: -5.1s;
}
.card-a {
  transform: rotate(-4deg);
}
.card-b {
  transform: rotate(3deg);
}
.card-c {
  transform: rotate(-2deg);
}

@keyframes floaty {
  0%,
  100% {
    translate: 0 0;
  }
  50% {
    translate: 0 -12px;
  }
}

/* Hero scroll cue */
.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(246, 241, 231, 0.4);
  font-size: 10px;
  letter-spacing: 0.28em;
  z-index: 3;
}

.scroll-cue .rail {
  width: 1px;
  height: 38px;
  background: linear-gradient(rgba(227, 168, 63, 0.8), transparent);
  animation: cue 2.2s ease-in-out infinite;
  transform-origin: top;
}

@keyframes cue {
  0%,
  100% {
    transform: scaleY(0.4);
    opacity: 0.4;
  }
  50% {
    transform: scaleY(1);
    opacity: 1;
  }
}

/* ---------- Ticker ---------- */
.ticker {
  background: var(--green-950);
  color: rgba(246, 241, 231, 0.58);
  border-top: 1px solid rgba(246, 241, 231, 0.08);
  border-bottom: 1px solid rgba(246, 241, 231, 0.08);
  overflow: hidden;
  padding: 14px 0;
}

.ticker-track {
  display: flex;
  gap: 44px;
  width: max-content;
  animation: marquee 38s linear infinite;
}

.ticker:hover .ticker-track {
  animation-play-state: paused;
}

.ticker span {
  display: inline-flex;
  align-items: center;
  gap: 44px;
  font-size: 12.5px;
  letter-spacing: 0.18em;
  white-space: nowrap;
}

.ticker span::after {
  content: "◆";
  color: var(--gold);
  font-size: 8px;
  opacity: 0.8;
}

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

/* ---------- Stats band ---------- */
.stats-band {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  divide-x: 1px solid var(--line);
}

.stat {
  padding: 42px 34px;
  border-left: 1px solid var(--line);
}

.stat:first-child {
  border-left: 0;
  padding-left: 0;
}

.stat:last-child {
  padding-right: 0;
}

.stat-value {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-size: clamp(30px, 3.2vw, 44px);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--green-800);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat-value .unit {
  font-size: 0.42em;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--gold-deep);
}

.stat-label {
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
}

.stat-note {
  margin-top: 4px;
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ---------- Steps / model ---------- */
.model-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 56px;
  align-items: start;
}

.steps {
  display: grid;
  gap: 14px;
}

.step {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 20px;
  padding: 24px 26px 24px 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
    border-color 0.35s;
}

.step:hover {
  transform: translateY(-3px);
  border-color: var(--gold-soft);
  box-shadow: var(--shadow-md);
}

.step-num {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--green-50);
  color: var(--green-700);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.step h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.step p {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.75;
}

.formula-card {
  position: sticky;
  top: 96px;
  padding: 34px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(500px 260px at 100% 0%, rgba(227, 168, 63, 0.16), transparent 70%),
    var(--green-900);
  color: var(--cream);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.formula-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(246, 241, 231, 0.1) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.35;
  pointer-events: none;
}

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

.formula-label {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--gold-soft);
  text-transform: uppercase;
}

.formula {
  margin: 16px 0 6px;
  font-size: 17px;
  line-height: 1.9;
  font-weight: 700;
  font-family: var(--font-display);
}

.formula .hl {
  color: var(--gold);
  border-bottom: 1px dashed rgba(227, 168, 63, 0.6);
  padding-bottom: 1px;
}

.formula-example {
  margin-top: 22px;
  padding: 18px 18px 16px;
  border-radius: 14px;
  background: rgba(246, 241, 231, 0.06);
  border: 1px solid rgba(246, 241, 231, 0.1);
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(246, 241, 231, 0.72);
}

.formula-example b {
  color: var(--gold-soft);
  font-variant-numeric: tabular-nums;
}

.formula-result {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(246, 241, 231, 0.12);
}

.formula-result span {
  font-size: 13px;
  color: rgba(246, 241, 231, 0.6);
}

.formula-result strong {
  font-size: 32px;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.formula-foot {
  margin-top: 18px;
  font-size: 11.5px;
  color: rgba(246, 241, 231, 0.42);
  line-height: 1.7;
}

/* ---------- Dual engine cards ---------- */
.engine-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.engine {
  position: relative;
  padding: 40px;
  border-radius: var(--radius-lg);
  background: var(--paper);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.4s;
}

.engine:hover {
  transform: translateY(-5px);
  border-color: var(--gold-soft);
  box-shadow: var(--shadow-md);
}

.engine--dark {
  background:
    radial-gradient(600px 300px at 96% 0%, rgba(227, 168, 63, 0.18), transparent 68%),
    var(--green-900);
  border-color: var(--green-800);
  color: var(--cream);
}

.engine-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
  text-transform: uppercase;
  margin-bottom: 26px;
}

.engine--dark .engine-tag {
  color: var(--gold);
}

.engine h3 {
  font-size: clamp(24px, 2.4vw, 31px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.engine p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 46ch;
}

.engine--dark p {
  color: rgba(246, 241, 231, 0.66);
}

.engine-list {
  display: grid;
  gap: 11px;
  margin: 26px 0 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.engine--dark .engine-list {
  border-color: rgba(246, 241, 231, 0.13);
}

.engine-list li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.engine--dark .engine-list li {
  color: rgba(246, 241, 231, 0.72);
}

.engine-list .tick {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--green-50);
  color: var(--green-600);
  font-size: 10px;
  font-weight: 800;
}

.engine--dark .engine-list .tick {
  background: rgba(227, 168, 63, 0.16);
  color: var(--gold);
}

.engine-watermark {
  position: absolute;
  right: -18px;
  bottom: -28px;
  font-size: 150px;
  font-weight: 800;
  line-height: 1;
  color: rgba(16, 54, 42, 0.035);
  pointer-events: none;
  letter-spacing: -0.06em;
}

.engine--dark .engine-watermark {
  color: rgba(246, 241, 231, 0.04);
}

/* ---------- Story / timeline ---------- */
.story-grid {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 64px;
  align-items: center;
}

.story-panel {
  position: relative;
  min-height: 430px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(420px 300px at 20% 20%, rgba(227, 168, 63, 0.24), transparent 70%),
    linear-gradient(160deg, var(--green-700), var(--green-950));
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 34px;
  color: var(--cream);
}

.story-panel::before {
  content: "换";
  position: absolute;
  right: -30px;
  top: -60px;
  font-family: var(--font-display);
  font-size: 280px;
  line-height: 1;
  color: rgba(246, 241, 231, 0.06);
  font-weight: 700;
}

.story-panel::after {
  content: "";
  position: absolute;
  left: 12%;
  top: 14%;
  width: 210px;
  height: 210px;
  border: 1px dashed rgba(227, 168, 63, 0.34);
  border-radius: 50%;
}

.story-panel-inner {
  position: relative;
  z-index: 2;
  max-width: 34ch;
}

.story-quote {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 29px);
  line-height: 1.55;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.story-quote em {
  font-style: normal;
  color: var(--gold);
}

.story-byline {
  margin-top: 18px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: rgba(246, 241, 231, 0.5);
  text-transform: uppercase;
}

.timeline {
  position: relative;
  padding-left: 26px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(var(--gold), var(--line-strong));
}

.timeline-item {
  position: relative;
  padding: 0 0 30px 0;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--cream);
  background: var(--gold);
  box-shadow: 0 0 0 1px var(--gold);
}

.timeline-year {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
  margin-bottom: 5px;
}

.timeline-item h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 4px;
}

.timeline-item p {
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.75;
}

/* ---------- Support grid ---------- */
.support-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.support-card {
  padding: 30px 28px;
  border-radius: var(--radius);
  background: var(--paper);
  border: 1px solid var(--line);
  transition: transform 0.35s var(--ease), border-color 0.35s,
    box-shadow 0.35s;
}

.support-card:hover {
  transform: translateY(-4px);
  border-color: var(--gold-soft);
  box-shadow: var(--shadow-md);
}

.support-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: var(--gold-50);
  color: var(--gold-deep);
  margin-bottom: 18px;
}

.support-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 7px;
}

.support-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.75;
}

/* ---------- Roadmap ---------- */
.roadmap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  margin-top: 12px;
}

.roadmap::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 13px;
  height: 1px;
  background: var(--line-strong);
}

.roadmap-item {
  position: relative;
  padding: 44px 26px 0 0;
}

.roadmap-item::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 0;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--cream);
  border: 2px solid var(--gold);
  z-index: 2;
}

.roadmap-item:first-child::before {
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(227, 168, 63, 0.16);
}

.roadmap-date {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--gold-deep);
  margin-bottom: 6px;
}

.roadmap-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}

.roadmap-item p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.7;
}

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  padding: 76px 0;
  background:
    radial-gradient(700px 340px at 78% 10%, rgba(227, 168, 63, 0.2), transparent 65%),
    linear-gradient(135deg, var(--green-800), var(--green-950));
  color: var(--cream);
  overflow: hidden;
}

.cta-band::after {
  content: "";
  position: absolute;
  width: 440px;
  height: 440px;
  right: -120px;
  bottom: -260px;
  border: 1px solid rgba(227, 168, 63, 0.18);
  border-radius: 50%;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 42px;
  position: relative;
  z-index: 2;
}

.cta-inner h2 {
  font-size: clamp(28px, 3.3vw, 42px);
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.cta-inner p {
  margin-top: 12px;
  color: rgba(246, 241, 231, 0.66);
  font-size: 15.5px;
}

.cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  flex-shrink: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--green-950);
  color: rgba(246, 241, 231, 0.6);
  padding: 68px 0 0;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.8fr 1.1fr;
  gap: 46px;
  padding-bottom: 52px;
}

.footer-brand .brand-name {
  color: var(--cream);
}

.footer-brand p {
  margin-top: 18px;
  max-width: 34ch;
  line-height: 1.8;
  font-size: 13.5px;
  color: rgba(246, 241, 231, 0.5);
}

.footer-col h4 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--gold-soft);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.footer-col ul {
  display: grid;
  gap: 11px;
}

.footer-col a {
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--gold-soft);
}

.footer-contact li {
  line-height: 1.7;
}

.footer-contact span {
  display: block;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(246, 241, 231, 0.35);
  text-transform: uppercase;
  margin-bottom: 2px;
}

.footer-contact b {
  color: var(--cream);
  font-weight: 600;
}

.footer-bottom {
  border-top: 1px solid rgba(246, 241, 231, 0.1);
  padding: 22px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: rgba(246, 241, 231, 0.38);
}

.footer-bottom a:hover {
  color: var(--gold-soft);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

/* ---------- Subpage hero ---------- */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 82px) 0 78px;
  background:
    radial-gradient(760px 420px at 84% 20%, rgba(227, 168, 63, 0.16), transparent 65%),
    linear-gradient(150deg, var(--green-900), var(--green-950));
  color: var(--cream);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(246, 241, 231, 0.1) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(90deg, #000, transparent 70%);
  -webkit-mask-image: linear-gradient(90deg, #000, transparent 70%);
  opacity: 0.3;
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.page-hero h1 {
  font-size: clamp(38px, 5.2vw, 68px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.03em;
  max-width: 18ch;
  text-wrap: balance;
}

.page-hero h1 .gold {
  color: var(--gold);
}

.page-hero .lead {
  color: rgba(246, 241, 231, 0.68);
  max-width: 60ch;
}

.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-top: 34px;
}

.page-hero-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 54px;
  background: rgba(246, 241, 231, 0.12);
  border: 1px solid rgba(246, 241, 231, 0.12);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-hero-fact {
  padding: 20px 22px;
  background: rgba(8, 29, 22, 0.62);
}

.page-hero-fact strong {
  display: block;
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 800;
  color: var(--gold);
  letter-spacing: -0.02em;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.page-hero-fact span {
  display: block;
  margin-top: 5px;
  font-size: 12.5px;
  color: rgba(246, 241, 231, 0.55);
}

.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  color: rgba(246, 241, 231, 0.42);
  margin-bottom: 26px;
  letter-spacing: 0.04em;
}

.breadcrumb a:hover {
  color: var(--gold-soft);
}

.breadcrumb .sep {
  opacity: 0.5;
}

/* ---------- Calculator ---------- */
.calc-shell {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 26px;
  align-items: stretch;
}

.calc-card {
  padding: 34px;
  border-radius: var(--radius-lg);
  background: var(--paper);
  border: 1px solid var(--line);
}

.calc-card--result {
  background:
    radial-gradient(560px 300px at 96% 0%, rgba(227, 168, 63, 0.17), transparent 68%),
    var(--green-900);
  border-color: var(--green-800);
  color: var(--cream);
}

.calc-title {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 4px;
}

.calc-sub {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 26px;
}

.calc-card--result .calc-sub {
  color: rgba(246, 241, 231, 0.54);
}

.calc-field {
  margin-bottom: 22px;
}

.calc-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 9px;
}

.calc-label output {
  font-size: 14px;
  font-weight: 800;
  color: var(--green-700);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.calc-label output small {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  margin-left: 2px;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--gold) 0%,
    var(--gold) var(--p, 50%),
    var(--cream-deep) var(--p, 50%),
    var(--cream-deep) 100%
  );
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--paper);
  border: 5px solid var(--green-700);
  box-shadow: 0 2px 8px rgba(16, 54, 42, 0.25);
  transition: transform 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.12);
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 5px solid var(--green-700);
  box-shadow: 0 2px 8px rgba(16, 54, 42, 0.25);
  cursor: pointer;
}

.calc-select {
  width: 100%;
  height: 46px;
  padding: 0 38px 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--paper)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%236a776f' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E")
    no-repeat right 14px center;
  appearance: none;
  -webkit-appearance: none;
  font-size: 14px;
  color: var(--ink);
  cursor: pointer;
}

.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: rgba(246, 241, 231, 0.12);
  border: 1px solid rgba(246, 241, 231, 0.12);
  border-radius: 14px;
  overflow: hidden;
  margin-top: 22px;
}

.result-cell {
  padding: 18px;
  background: rgba(8, 29, 22, 0.42);
}

.result-cell span {
  display: block;
  font-size: 11.5px;
  color: rgba(246, 241, 231, 0.5);
  letter-spacing: 0.04em;
}

.result-cell strong {
  display: block;
  margin-top: 5px;
  font-size: 22px;
  font-weight: 800;
  color: var(--cream);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.result-cell strong.gold {
  color: var(--gold);
}

.result-hero {
  margin: 8px 0 0;
  padding: 22px 0 24px;
  border-bottom: 1px solid rgba(246, 241, 231, 0.12);
}

.result-hero span {
  font-size: 12px;
  color: rgba(246, 241, 231, 0.52);
  letter-spacing: 0.06em;
}

.result-hero strong {
  display: block;
  margin-top: 4px;
  font-size: clamp(44px, 5vw, 60px);
  line-height: 1.05;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}

.result-hero small {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: rgba(246, 241, 231, 0.48);
}

.calc-footnote {
  margin-top: 20px;
  font-size: 11.5px;
  line-height: 1.7;
  color: rgba(246, 241, 231, 0.4);
}

/* ---------- Benefit list ---------- */
.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: start;
}

.benefit-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.benefit-row {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.benefit-row .num {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--gold-deep);
  padding-top: 3px;
}

.benefit-row h3 {
  font-size: 16.5px;
  font-weight: 700;
  margin-bottom: 3px;
}

.benefit-row p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.72;
}

/* ---------- Data bars (investor) ---------- */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.metric-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--paper);
  border: 1px solid var(--line);
}

.metric-card .label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.metric-card .value {
  font-size: clamp(30px, 3vw, 42px);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--green-800);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.metric-card .value small {
  font-size: 0.4em;
  font-weight: 700;
  color: var(--gold-deep);
  letter-spacing: 0;
  margin-left: 3px;
}

.metric-card .note {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.65;
}

.bar-chart {
  display: grid;
  gap: 18px;
}

.bar-row {
  display: grid;
  grid-template-columns: 118px 1fr 74px;
  gap: 16px;
  align-items: center;
  font-size: 13.5px;
}

.bar-row .chart-label {
  color: var(--ink-soft);
  font-weight: 600;
}

.bar-track {
  height: 10px;
  border-radius: 999px;
  background: var(--cream-deep);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  width: var(--w, 0%);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--green-600), var(--green-500));
  transform-origin: left;
  transition: width 1.1s var(--ease);
}

.bar-row:nth-child(2) .bar-fill {
  background: linear-gradient(90deg, var(--gold-deep), var(--gold));
}

.bar-row:nth-child(3) .bar-fill {
  background: linear-gradient(90deg, #8a6a3a, #c9a76a);
}

.bar-row:nth-child(4) .bar-fill {
  background: linear-gradient(90deg, #4a6b5c, #7fa491);
}

.bar-row output {
  text-align: right;
  font-weight: 800;
  color: var(--green-800);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
}

/* ---------- Use-of-funds ---------- */
.funds {
  display: grid;
  gap: 14px;
}

.fund-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
}

.fund-row strong {
  font-weight: 700;
  font-size: 15px;
}

.fund-row span {
  font-size: 12.5px;
  color: var(--muted);
}

.fund-pct {
  font-size: 18px;
  font-weight: 800;
  color: var(--gold-deep);
  font-variant-numeric: tabular-nums;
}

/* ---------- Team ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.team-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--paper);
  border: 1px solid var(--line);
}

.team-avatar {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--green-50);
  color: var(--green-700);
  font-weight: 800;
  font-size: 18px;
  margin-bottom: 16px;
}

.team-card h3 {
  font-size: 16.5px;
  font-weight: 700;
}

.team-card .role {
  font-size: 12px;
  color: var(--gold-deep);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.team-card p {
  margin-top: 12px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.7;
}

.placeholder-note {
  display: inline-block;
  margin-top: 18px;
  font-size: 12px;
  color: var(--muted);
  background: var(--cream-deep);
  border-radius: 8px;
  padding: 8px 12px;
  line-height: 1.6;
}

/* ---------- Process ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  counter-reset: process;
}

.process-step {
  position: relative;
  padding: 24px 18px 20px;
  border-radius: 14px;
  background: var(--paper);
  border: 1px solid var(--line);
}

.process-step::before {
  counter-increment: process;
  content: "0" counter(process);
  display: block;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
  margin-bottom: 16px;
}

.process-step h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 5px;
}

.process-step p {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.65;
}

/* ---------- FAQ ---------- */
.faq-list {
  border-top: 1px solid var(--line);
  max-width: 880px;
  margin-inline: auto;
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
  border: 0;
  background: transparent;
  text-align: left;
  font-size: 16.5px;
  font-weight: 700;
  cursor: pointer;
  color: var(--ink);
}

.faq-q .icon {
  position: relative;
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  transition: background 0.25s, border-color 0.25s, transform 0.35s var(--ease);
}

.faq-q .icon::before,
.faq-q .icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 1.5px;
  background: var(--green-800);
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease);
}

.faq-q .icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item.is-open .faq-q .icon {
  background: var(--green-800);
  border-color: var(--green-800);
}

.faq-item.is-open .faq-q .icon::before,
.faq-item.is-open .faq-q .icon::after {
  background: var(--cream);
}

.faq-item.is-open .faq-q .icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s var(--ease);
}

.faq-item.is-open .faq-a {
  grid-template-rows: 1fr;
}

.faq-a-inner {
  overflow: hidden;
}

.faq-a p {
  padding: 0 52px 26px 0;
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.85;
}

/* ---------- Forms ---------- */
.apply-shell {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 48px;
  align-items: start;
}

.apply-aside {
  position: sticky;
  top: 100px;
}

.apply-aside h2 {
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.apply-aside p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.apply-points {
  display: grid;
  gap: 14px;
  margin-top: 28px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.apply-points li {
  display: flex;
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.apply-points .tick {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--green-50);
  color: var(--green-600);
  font-size: 10px;
  font-weight: 800;
}

.form-card {
  padding: 38px;
  border-radius: var(--radius-lg);
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}

.form-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}

.form-head h3 {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.form-head p {
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

.form-badge {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 700;
  color: var(--green-600);
  background: var(--green-50);
  border-radius: 999px;
  padding: 5px 11px;
  letter-spacing: 0.04em;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
}

.field label .req {
  color: var(--red);
  margin-left: 3px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 48px;
  padding: 11px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: #fffefb;
  font-size: 14.5px;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.field textarea {
  min-height: 92px;
  resize: vertical;
  line-height: 1.7;
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  background: #fffefb
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%236a776f' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E")
    no-repeat right 14px center;
  padding-right: 38px;
  cursor: pointer;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--green-600);
  box-shadow: 0 0 0 3px rgba(31, 98, 76, 0.12);
  background: #fff;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #a8b0aa;
}

.field .hint {
  font-size: 11.5px;
  color: var(--muted);
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(201, 80, 58, 0.1);
}

.field-error {
  display: none;
  font-size: 11.5px;
  color: var(--red);
}

.field.has-error .field-error {
  display: block;
}

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

.chip {
  position: relative;
}

.chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.chip span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: #fffefb;
  font-size: 13px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.2s;
}

.chip input:checked + span {
  border-color: var(--green-700);
  background: var(--green-800);
  color: var(--cream);
}

.chip input:focus-visible + span {
  outline: 2px solid var(--gold-deep);
  outline-offset: 2px;
}

.form-consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 22px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.65;
}

.form-consent input {
  margin-top: 3px;
  accent-color: var(--green-700);
}

.form-consent a {
  color: var(--green-700);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.form-status {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  flex: 1;
  min-width: 180px;
}

.form-status.is-error {
  color: var(--red);
}

.form-status.is-success {
  color: var(--green-600);
  font-weight: 600;
}

.form-status a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- Contact strip ---------- */
.contact-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.contact-cell {
  background: var(--paper);
  padding: 26px;
}

.contact-cell span {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.contact-cell strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.contact-cell small {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  color: var(--muted);
}

/* ---------- Legal pages ---------- */
.legal-wrap {
  max-width: 860px;
  margin-inline: auto;
  padding: 120px 0 96px;
}

.legal-wrap h1 {
  font-size: clamp(30px, 3.6vw, 42px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.legal-meta {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 36px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.legal-wrap h2 {
  font-size: 19px;
  font-weight: 700;
  margin: 34px 0 10px;
}

.legal-wrap h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 22px 0 8px;
}

.legal-wrap p,
.legal-wrap li {
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.9;
}

.legal-wrap ul {
  list-style: disc;
  padding-left: 22px;
  margin: 10px 0;
}

.legal-wrap ul li {
  margin-bottom: 4px;
}

.legal-note {
  background: var(--gold-50);
  border: 1px solid var(--gold-soft);
  border-radius: 12px;
  padding: 16px 18px;
  font-size: 13px;
  line-height: 1.75;
  color: #7a5a1c;
  margin: 20px 0;
}

/* ---------- Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--delay, 0ms);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

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

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }
  .hero {
    min-height: auto;
    padding-bottom: 96px;
  }
  .exchange-visual {
    max-width: 460px;
  }
  .model-grid,
  .story-grid,
  .split,
  .calc-shell,
  .apply-shell {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .formula-card,
  .apply-aside {
    position: static;
  }
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
  .footer-grid .footer-col:last-child {
    grid-column: 1 / -1;
  }
  .process {
    grid-template-columns: repeat(3, 1fr);
  }
  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  :root {
    --header-h: 66px;
  }
  .section {
    padding: 76px 0;
  }
  .section--tight {
    padding: 56px 0;
  }
  .container,
  .header-inner {
    width: calc(100% - 40px);
  }
  .site-nav {
    position: fixed;
    inset: 0;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 6px;
    padding: 90px 32px 40px;
    background: var(--cream);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.35s var(--ease), transform 0.35s var(--ease),
      visibility 0.35s;
    z-index: 120;
  }
  .nav-open .site-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .site-nav a {
    font-size: 24px;
    font-weight: 800;
    color: var(--green-900) !important;
    padding: 12px 0;
    width: 100%;
    border-bottom: 1px solid var(--line);
  }
  .site-nav a::after {
    display: none;
  }
  .header-cta {
    display: none;
  }
  .nav-toggle {
    display: block;
  }
  .site-header--over:not(.is-scrolled) .nav-toggle span {
    background: var(--cream);
  }
  .site-header--over:not(.is-scrolled) .nav-toggle {
    border-color: rgba(246, 241, 231, 0.4);
  }
  .nav-open .nav-toggle span {
    background: var(--green-900) !important;
  }
  .nav-open .nav-toggle {
    border-color: var(--line-strong) !important;
  }
  .nav-open .site-header {
    background: var(--cream);
  }
  .hero h1 {
    font-size: clamp(38px, 9vw, 58px);
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .stat {
    padding: 30px 24px;
    border-left: 1px solid var(--line);
  }
  .stat:nth-child(odd) {
    border-left: 0;
    padding-left: 0;
  }
  .stat:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }
  .stat:nth-child(even) {
    padding-right: 0;
  }
  .support-grid {
    grid-template-columns: 1fr 1fr;
  }
  .engine-grid {
    grid-template-columns: 1fr;
  }
  .roadmap {
    grid-template-columns: 1fr 1fr;
    row-gap: 30px;
  }
  .roadmap::before {
    display: none;
  }
  .roadmap-item {
    padding-top: 0;
    padding-left: 26px;
  }
  .roadmap-item::before {
    top: 6px;
  }
  .page-hero {
    padding-top: calc(var(--header-h) + 56px);
  }
  .page-hero-facts {
    grid-template-columns: 1fr 1fr;
  }
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }
  .footer-grid .footer-col:last-child {
    grid-column: auto;
  }
  .contact-strip {
    grid-template-columns: 1fr 1fr;
  }
  .team-grid {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .field--full {
    grid-column: auto;
  }
  .form-card {
    padding: 28px 22px;
  }
  .process {
    grid-template-columns: 1fr 1fr;
  }
  .bar-row {
    grid-template-columns: 92px 1fr 64px;
    gap: 10px;
    font-size: 12.5px;
  }
  .legal-wrap {
    padding-top: 100px;
  }
}

@media (max-width: 560px) {
  .container,
  .header-inner {
    width: calc(100% - 32px);
  }
  .section {
    padding: 62px 0;
  }
  .brand-name {
    font-size: 16px;
  }
  .brand-en {
    font-size: 8px;
  }
  .brand-logo {
    width: 34px;
    height: 34px;
  }
  .hero {
    padding-top: calc(var(--header-h) + 34px);
    padding-bottom: 72px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-facts {
    gap: 10px 20px;
    font-size: 12.5px;
  }
  .hero-entry {
    display: flex;
    width: 100%;
    gap: 9px;
    margin-top: 18px;
    padding: 12px 14px;
    border-radius: var(--radius);
    font-size: 13px;
    line-height: 1.5;
  }
  .hero-entry-text {
    flex: 1;
  }
  .exchange-visual {
    max-width: 340px;
  }
  .float-card {
    width: 48%;
    padding: 11px 12px;
  }
  .float-card strong {
    font-size: 12.5px;
  }
  .core-value {
    font-size: 26px;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .stat,
  .stat:first-child,
  .stat:nth-child(even),
  .stat:nth-child(odd) {
    border-left: 0;
    padding: 24px 0;
    border-top: 1px solid var(--line);
  }
  .stat:first-child {
    border-top: 0;
  }
  .support-grid,
  .metric-grid,
  .process,
  .roadmap {
    grid-template-columns: 1fr;
  }
  .roadmap-item {
    border-top: 1px solid var(--line);
    padding: 20px 0 0 0;
  }
  .roadmap-item::before {
    display: none;
  }
  .roadmap-item:first-child {
    border-top: 0;
    padding-top: 0;
  }
  .page-hero-facts {
    grid-template-columns: 1fr;
  }
  .page-hero h1 {
    font-size: clamp(32px, 10vw, 44px);
  }
  .page-hero-actions .btn {
    width: 100%;
  }
  .cta-actions {
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    flex-direction: column;
  }
  .contact-strip {
    grid-template-columns: 1fr;
  }
  .result-grid {
    grid-template-columns: 1fr;
  }
  .calc-card {
    padding: 26px 20px;
  }
  .form-card {
    padding: 24px 18px;
  }
  .form-actions .btn {
    width: 100%;
  }
  .form-status {
    min-width: 100%;
  }
  .faq-q {
    font-size: 15.5px;
  }
  .engine {
    padding: 30px 24px;
  }
  .engine-watermark {
    font-size: 110px;
  }
  .story-panel {
    min-height: 340px;
    padding: 26px;
  }
  .story-panel::before {
    font-size: 190px;
  }
}