/* ==========================================================================
   GDIRI — 广东省数字产业研究院
   Design tokens derived from the institutional logo: deep pine green + seal red
   ========================================================================== */

:root {
  --brand-900: #082A22;
  --brand-800: #0A342A;
  --brand: #0E4A3D;
  --brand-600: #15604F;
  --brand-400: #2E8570;
  --teal: #17A08A;
  --teal-soft: #D9EEE8;
  --red: #C8102E;
  --red-soft: #F6E3E6;

  --ink: #0C1A16;
  --ink-2: #2C3A35;
  --muted: #5E6E67;
  --muted-2: #8A968F;

  --paper: #FBFAF7;
  --paper-2: #F4F1E9;
  --paper-3: #EDE9DE;
  --white: #FFFFFF;

  --line: rgba(14, 74, 61, 0.14);
  --line-2: rgba(14, 74, 61, 0.08);
  --line-light: rgba(255, 255, 255, 0.16);

  --shadow-sm: 0 1px 2px rgba(9, 42, 34, 0.05), 0 2px 8px rgba(9, 42, 34, 0.04);
  --shadow: 0 4px 12px rgba(9, 42, 34, 0.06), 0 12px 32px rgba(9, 42, 34, 0.07);
  --shadow-lg: 0 10px 30px rgba(9, 42, 34, 0.10), 0 30px 70px rgba(9, 42, 34, 0.10);

  --radius: 4px;
  --radius-lg: 8px;

  --nav-h: 76px;
  --wrap: 1200px;
  --wrap-narrow: 860px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-2);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
    system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

p { margin: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; }

::selection { background: var(--brand); color: #fff; }

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
}
.wrap-narrow { max-width: var(--wrap-narrow); }

.section { padding: 104px 0; position: relative; }
.section--tight { padding: 72px 0; }
.section--paper { background: var(--paper-2); }
.section--white { background: var(--white); }
.section--dark { background: var(--brand-900); color: rgba(255,255,255,.78); }
.section--dark h1, .section--dark h2, .section--dark h3, .section--dark h4 { color: #fff; }

/* ---------- typography helpers ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand-400);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: .55;
}
.section--dark .eyebrow { color: var(--teal); }

.display {
  font-size: clamp(30px, 3.6vw, 46px);
  line-height: 1.24;
  letter-spacing: -0.025em;
  font-weight: 700;
}
.h-section {
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.3;
  letter-spacing: -0.02em;
}
.lead {
  font-size: 17px;
  line-height: 1.95;
  color: var(--muted);
}
.section--dark .lead { color: rgba(255,255,255,.7); }

.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }
.section-head p { margin-top: 18px; }

.text-red { color: var(--red); }
.text-brand { color: var(--brand); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 50px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

.btn--primary { background: var(--brand); color: #fff; }
.btn--primary:hover { background: var(--brand-600); transform: translateY(-1px); }

.btn--ghost { background: transparent; color: var(--brand); border-color: rgba(14,74,61,.28); }
.btn--ghost:hover { border-color: var(--brand); background: rgba(14,74,61,.04); }

.btn--light { background: #fff; color: var(--brand-900); }
.btn--light:hover { background: var(--paper-2); transform: translateY(-1px); }

.btn--outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.35); }
.btn--outline-light:hover { border-color: #fff; background: rgba(255,255,255,.08); }

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

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  transition: gap .25s var(--ease), color .25s var(--ease);
}
.link-arrow::after { content: "→"; transition: transform .25s var(--ease); }
.link-arrow:hover { color: var(--red); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(251, 250, 247, 0);
  border-bottom: 1px solid transparent;
  transition: background .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
}
.nav.is-solid,
.nav.is-scrolled {
  background: rgba(251, 250, 247, .94);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line-2);
}
.nav.is-scrolled { box-shadow: 0 1px 12px rgba(9,42,34,.05); }

.nav__inner {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img {
  width: 42px; height: 42px;
  object-fit: contain;
  background: #fff;
  padding: 3px;
  border-radius: 6px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, .14);
}
.brand__txt { display: flex; flex-direction: column; line-height: 1.2; }
.brand__cn {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.brand__en {
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-top: 3px;
}

.nav__menu { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.nav__item { position: relative; }
.nav__link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-2);
  border-radius: var(--radius);
  transition: color .2s, background .2s;
  white-space: nowrap;
}
.nav__link:hover { color: var(--brand); background: rgba(14,74,61,.05); }
.nav__item.is-active > .nav__link { color: var(--brand); font-weight: 600; }
.nav__link .caret {
  width: 9px; height: 9px; margin-top: 1px;
  border-right: 1.4px solid currentColor;
  border-bottom: 1.4px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  opacity: .5;
}

.nav__drop {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translate(-50%, 6px);
  min-width: 210px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
}
.nav__item:hover .nav__drop { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.nav__drop a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ink-2);
  border-radius: var(--radius);
  transition: background .18s, color .18s;
}
.nav__drop a:hover { background: var(--paper-2); color: var(--brand); }

.nav__cta { margin-left: 16px; }

/* ---- 深色首屏上的反白导航（滚动后恢复浅底深字） ---- */
body[data-invert] .nav:not(.is-scrolled) .nav__link { color: rgba(255, 255, 255, .84); }
body[data-invert] .nav:not(.is-scrolled) .nav__link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .1);
}
body[data-invert] .nav:not(.is-scrolled) .nav__item.is-active > .nav__link {
  color: #fff;
  box-shadow: inset 0 -2px 0 var(--teal);
  border-radius: 0;
}
body[data-invert] .nav:not(.is-scrolled) .brand__cn { color: #fff; }
body[data-invert] .nav:not(.is-scrolled) .brand__en { color: rgba(255, 255, 255, .45); }
body[data-invert] .nav:not(.is-scrolled) .burger { border-color: rgba(255, 255, 255, .28); }
body[data-invert] .nav:not(.is-scrolled) .burger span { background: #fff; }
body[data-invert] .nav:not(.is-scrolled) .nav__cta {
  background: #fff;
  color: var(--brand-900);
}
body[data-invert] .nav:not(.is-scrolled) .nav__cta:hover { background: var(--paper-2); }

/* burger */
.burger {
  display: none;
  width: 44px; height: 44px;
  margin-left: auto;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
}
.burger span {
  position: absolute;
  left: 50%; width: 18px; height: 1.6px;
  background: var(--ink);
  transform: translateX(-50%);
  transition: transform .3s var(--ease), opacity .2s;
}
.burger span:nth-child(1) { top: 15px; }
.burger span:nth-child(2) { top: 21px; }
.burger span:nth-child(3) { top: 27px; }
.burger.is-open span:nth-child(1) { transform: translateX(-50%) translateY(6px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateX(-50%) translateY(-6px) rotate(-45deg); }

/* mobile drawer */
.drawer {
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  z-index: 99;
  background: var(--paper);
  padding: 24px 24px 48px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform .38s var(--ease);
}
.drawer.is-open { transform: translateX(0); }
.drawer a {
  display: block;
  padding: 15px 4px;
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--line-2);
}
.drawer .sub a {
  padding: 11px 4px 11px 20px;
  font-size: 15px;
  color: var(--muted);
  border-bottom: 1px dashed var(--line-2);
}
.drawer .btn { margin-top: 28px; width: 100%; }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 72px) 0 96px;
  background: var(--brand-900);
  color: rgba(255,255,255,.8);
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 70% 60% at 78% 18%, rgba(23,160,138,.30), transparent 62%),
    radial-gradient(ellipse 60% 55% at 12% 88%, rgba(200,16,46,.16), transparent 60%),
    linear-gradient(155deg, #082A22 0%, #0B3A2E 48%, #072520 100%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 85% 75% at 50% 40%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 85% 75% at 50% 40%, #000 20%, transparent 78%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 64px;
  align-items: center;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 15px 7px 11px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 100px;
  background: rgba(255,255,255,.05);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: rgba(255,255,255,.82);
  margin-bottom: 30px;
}
.hero__badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(23,160,138,.22);
}
.hero h1 {
  color: #fff;
  font-size: clamp(34px, 4.4vw, 60px);
  line-height: 1.18;
  letter-spacing: -0.035em;
  font-weight: 700;
}
.hero h1 .accent {
  color: #3DDBBC;
  position: relative;
  white-space: nowrap;
}
.hero__sub {
  margin-top: 26px;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255,255,255,.66);
  max-width: 540px;
}
.hero__actions { display: flex; gap: 14px; margin-top: 40px; flex-wrap: wrap; }

.hero__en {
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(255,255,255,.46);
  max-width: 520px;
  line-height: 2.2;
}

/* hero side panel */
.hero__panel {
  border: 1px solid rgba(255,255,255,.13);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.035);
  backdrop-filter: blur(8px);
  padding: 8px;
}
.hero__panel-head {
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hero__panel-head span {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
}
.hero__panel-head b { color: var(--teal); font-size: 11px; letter-spacing: .1em; font-weight: 600; }
.hero__stat {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.hero__stat:last-child { border-bottom: 0; }
.hero__stat .num {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.03em;
  min-width: 92px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.hero__stat .num em { font-style: normal; font-size: 15px; color: var(--teal); margin-left: 2px; }
.hero__stat .lbl { font-size: 13px; color: rgba(255,255,255,.6); line-height: 1.6; }

/* scroll hint */
.hero__scroll {
  position: absolute;
  left: 50%; bottom: 30px;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 10px; letter-spacing: .2em; text-transform: uppercase;
  color: rgba(255,255,255,.3);
}
.hero__scroll::after {
  content: ""; width: 1px; height: 34px;
  background: linear-gradient(to bottom, rgba(255,255,255,.4), transparent);
  animation: scrollPulse 2.2s var(--ease) infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: .25; transform: scaleY(.6); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* page hero (subpages) */
.phero {
  position: relative;
  padding: calc(var(--nav-h) + 78px) 0 76px;
  background: var(--brand-900);
  color: rgba(255,255,255,.7);
  overflow: hidden;
  isolation: isolate;
}
.phero::before {
  content: "";
  position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(ellipse 60% 70% at 85% 10%, rgba(23,160,138,.24), transparent 60%),
    linear-gradient(160deg, #082A22, #0C3D30 70%, #08251F);
}
.phero::after {
  content: "";
  position: absolute; inset: 0; z-index: -1; opacity: .4;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, #000, transparent 85%);
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 85%);
}
.phero h1 {
  color: #fff;
  font-size: clamp(30px, 3.8vw, 48px);
  letter-spacing: -0.03em;
  line-height: 1.22;
  max-width: 820px;
}
.phero p { margin-top: 20px; max-width: 660px; font-size: 16.5px; color: rgba(255,255,255,.62); }
.phero .eyebrow { color: var(--teal); }

.crumb {
  display: flex; align-items: center; gap: 10px;
  margin-top: 34px; font-size: 12.5px; color: rgba(255,255,255,.38);
}
.crumb a:hover { color: rgba(255,255,255,.8); }
.crumb .sep { opacity: .4; }

/* ==========================================================================
   QUICK ACCESS  (AEAA-style four-up)
   ========================================================================== */
.quick {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}
.quick__item {
  padding: 40px 30px 36px;
  border-right: 1px solid var(--line-2);
  position: relative;
  transition: background .3s var(--ease);
}
.quick__item:last-child { border-right: 0; }
.quick__item:hover { background: var(--paper); }
.quick__item::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  height: 2px; width: 0;
  background: var(--red);
  transition: width .4s var(--ease);
}
.quick__item:hover::after { width: 100%; }
.quick__idx {
  font-size: 11px; font-weight: 600; letter-spacing: .16em;
  color: var(--muted-2); margin-bottom: 22px;
}
.quick__item h3 { font-size: 18px; margin-bottom: 10px; }
.quick__item p { font-size: 13.5px; color: var(--muted); line-height: 1.75; margin-bottom: 20px; }
.quick__item .link-arrow { font-size: 13px; }

/* ==========================================================================
   WHY / VALUE GRID
   ========================================================================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.why-item {
  background: var(--white);
  padding: 40px 34px;
  transition: background .3s var(--ease);
}
.why-item:hover { background: var(--paper); }
.why-item__no {
  font-size: 11px; letter-spacing: .16em; font-weight: 600;
  color: var(--red); margin-bottom: 16px;
}
.why-item h3 { font-size: 18px; margin-bottom: 12px; }
.why-item p { font-size: 14px; color: var(--muted); line-height: 1.85; }

/* ==========================================================================
   DOMAIN CARDS
   ========================================================================== */
.domains {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.domain {
  position: relative;
  padding: 36px 32px 34px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
  overflow: hidden;
}
.domain::before {
  content: "";
  position: absolute; inset: 0 auto 0 0;
  width: 3px;
  background: var(--brand);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform .4s var(--ease);
}
.domain:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(14,74,61,.22); }
.domain:hover::before { transform: scaleY(1); }
.domain__tag {
  display: inline-block;
  font-size: 10.5px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--brand-400);
  margin-bottom: 18px;
}
.domain h3 { font-size: 19.5px; margin-bottom: 12px; letter-spacing: -0.01em; }
.domain p { font-size: 14px; color: var(--muted); line-height: 1.85; }
.domain ul { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.domain ul li {
  font-size: 12px;
  padding: 4px 10px;
  background: var(--paper-2);
  border-radius: 3px;
  color: var(--ink-2);
}

/* ==========================================================================
   TECH STACK (dark)
   ========================================================================== */
.tech {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,.1);
  margin-top: 8px;
}
.tech__item {
  background: var(--brand-900);
  padding: 38px 32px;
  transition: background .3s var(--ease);
}
.tech__item:hover { background: #0B3229; }
.tech__item .code {
  font-size: 12px; letter-spacing: .1em; font-weight: 600;
  color: var(--teal); margin-bottom: 14px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.tech__item h3 { font-size: 18px; color: #fff; margin-bottom: 12px; }
.tech__item p { font-size: 13.5px; color: rgba(255,255,255,.58); line-height: 1.85; }

/* ==========================================================================
   PLAN / 2026 三大板块
   ========================================================================== */
.plan {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 8px;
}
.plan__card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  display: flex;
  flex-direction: column;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.plan__card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.plan__card .k {
  font-size: 11px; letter-spacing: .16em; font-weight: 600;
  color: var(--red); margin-bottom: 20px;
}
.plan__card h3 { font-size: 17px; margin-bottom: 12px; line-height: 1.45; }
.plan__card p { font-size: 13.5px; color: var(--muted); line-height: 1.8; flex: 1; }
.plan__card .metric {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line-2);
  font-size: 12.5px;
  color: var(--ink-2);
  font-weight: 600;
}

/* KPI strip */
.kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 56px;
  padding-top: 44px;
  border-top: 1px solid var(--line);
}
.kpi .n {
  font-size: 40px;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: -0.04em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.kpi .n em { font-style: normal; font-size: 17px; margin-left: 3px; color: var(--brand-400); }
.kpi .t { margin-top: 10px; font-size: 13px; color: var(--muted); }

/* ==========================================================================
   TEAM
   ========================================================================== */
.team {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.person {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.person:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.person__avatar {
  aspect-ratio: 16 / 10;
  background: linear-gradient(150deg, var(--brand-800), var(--brand-600) 60%, var(--brand-400));
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.person__avatar::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 28px 28px;
}
.person__initial {
  font-size: 54px;
  font-weight: 700;
  color: rgba(255,255,255,.9);
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
  font-family: Georgia, "Songti SC", serif;
}
.person__body { padding: 26px 26px 28px; flex: 1; display: flex; flex-direction: column; }
.person__role {
  font-size: 11px; font-weight: 600; letter-spacing: .13em;
  color: var(--red); text-transform: uppercase; margin-bottom: 10px;
}
.person h3 { font-size: 21px; margin-bottom: 4px; }
.person__title { font-size: 13px; color: var(--brand-400); margin-bottom: 16px; }
.person p { font-size: 13.5px; color: var(--muted); line-height: 1.85; }
.person__tags { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 6px; }
.person__tags span {
  font-size: 11.5px; padding: 3px 9px; border-radius: 3px;
  background: var(--paper-2); color: var(--ink-2);
}

/* ==========================================================================
   NEWS
   ========================================================================== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(14,74,61,.22);
}
.news-card__meta {
  display: flex; align-items: center; gap: 12px;
  font-size: 12px; color: var(--muted-2); margin-bottom: 18px;
}
.news-card__cat {
  color: var(--red); font-weight: 600; letter-spacing: .06em;
}
.news-card h3 {
  font-size: 17px;
  line-height: 1.55;
  margin-bottom: 14px;
  letter-spacing: -0.005em;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.8;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card .link-arrow { margin-top: 22px; font-size: 13px; }

/* news list (news page) */
.news-list { display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.news-row {
  display: grid;
  grid-template-columns: 96px 1fr auto;
  gap: 32px;
  align-items: start;
  padding: 30px 8px;
  border-bottom: 1px solid var(--line-2);
  transition: background .25s var(--ease), padding-left .25s var(--ease);
}
.news-row { text-decoration: none; color: inherit; }
a.news-row { cursor: pointer; }
.news-row:hover { background: rgba(255,255,255,.7); padding-left: 18px; }
.news-row__text { min-width: 0; }
.news-row__side { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.news-row__go {
  font-size: 12px; font-weight: 600; color: var(--muted-2);
  white-space: nowrap; letter-spacing: .02em;
  transition: color .25s var(--ease), transform .25s var(--ease);
}
a.news-row:hover .news-row__go { color: var(--red); transform: translateX(3px); }
.news-row__date {
  font-size: 12.5px; color: var(--muted-2);
  font-variant-numeric: tabular-nums;
  padding-top: 3px;
}
.news-row__date b { display: block; font-size: 15px; color: var(--ink-2); font-weight: 600; }
.news-row h3 { font-size: 17.5px; line-height: 1.55; margin-bottom: 8px; }
.news-row p { font-size: 13.5px; color: var(--muted); line-height: 1.8; }
.news-row__tag {
  font-size: 11.5px; padding: 4px 11px; border-radius: 3px;
  background: var(--paper-3); color: var(--ink-2); white-space: nowrap;
}

/* ==========================================================================
   PARTNERS / FOOTER LINKS
   ========================================================================== */
.partners {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.partner {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white);
  transition: border-color .3s, transform .3s var(--ease), box-shadow .3s;
}
.partner:hover { border-color: var(--brand-400); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.partner strong { font-size: 15px; color: var(--ink); font-weight: 600; }
.partner span { font-size: 12px; color: var(--muted); line-height: 1.6; }
.partner em {
  font-style: normal; font-size: 11px; color: var(--brand-400);
  letter-spacing: .06em; margin-top: auto; padding-top: 8px;
}

/* ==========================================================================
   CTA BAND
   ========================================================================== */
.cta {
  position: relative;
  padding: 88px 0;
  background: var(--brand);
  color: rgba(255,255,255,.75);
  overflow: hidden;
  isolation: isolate;
}
.cta::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse 50% 90% at 90% 20%, rgba(23,160,138,.35), transparent 60%),
    radial-gradient(ellipse 40% 80% at 5% 90%, rgba(200,16,46,.18), transparent 60%);
}
.cta__grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
}
.cta h2 { color: #fff; font-size: clamp(24px, 2.8vw, 34px); letter-spacing: -0.02em; }
.cta p { margin-top: 14px; font-size: 15.5px; color: rgba(255,255,255,.7); max-width: 620px; }
.cta__actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: #061C17;
  color: rgba(255,255,255,.5);
  padding: 76px 0 0;
  font-size: 13.5px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1.15fr;
  gap: 48px;
  padding-bottom: 44px;
}
.footer__brand { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 20px; }
.footer__brand img { width: 44px; height: 44px; object-fit: contain; border-radius: 3px; }
.footer__brand strong { display: block; color: #fff; font-size: 15.5px; font-weight: 600; line-height: 1.4; }
.footer__brand span {
  display: block; font-size: 9px; letter-spacing: .05em;
  text-transform: uppercase; color: rgba(255,255,255,.34);
  margin-top: 5px; line-height: 1.5; max-width: 260px;
}

.footer__friends {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,.08);
}
.footer__friends-label {
  font-size: 11px; letter-spacing: .14em; color: rgba(255,255,255,.3);
  text-transform: uppercase; flex-shrink: 0;
}
.footer__friends .footer__links-ext { margin-top: 0; }
.footer p { line-height: 1.9; color: rgba(255,255,255,.45); }
.footer h4 {
  color: #fff; font-size: 12px; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase;
  margin-bottom: 20px;
}
.footer li { margin-bottom: 11px; }
.footer a { color: rgba(255,255,255,.5); transition: color .2s; }
.footer a:hover { color: var(--teal); }
.footer__contact li { display: flex; gap: 10px; align-items: flex-start; line-height: 1.7; }
.footer__contact .k { color: rgba(255,255,255,.32); flex-shrink: 0; }

.footer__links-ext { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.footer__links-ext a {
  font-size: 12px;
  padding: 6px 12px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 3px;
  color: rgba(255,255,255,.62);
  transition: border-color .2s, color .2s, background .2s;
}
.footer__links-ext a:hover { border-color: var(--teal); color: var(--teal); background: rgba(23,160,138,.07); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 12px;
  color: rgba(255,255,255,.3);
}
.footer__bottom a:hover { color: rgba(255,255,255,.65); }
.footer__legal { display: flex; gap: 22px; }

/* ==========================================================================
   CONTENT BLOCKS (about / services / etc.)
   ========================================================================== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}
.split--wide { grid-template-columns: 1.25fr .75fr; }

.prose h2 { font-size: 26px; margin-bottom: 20px; letter-spacing: -0.02em; }
.prose h3 { font-size: 19px; margin: 36px 0 14px; }
.prose p { margin-bottom: 18px; font-size: 15.5px; line-height: 1.95; color: var(--ink-2); }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--ink); font-weight: 600; }

.quote {
  border-left: 3px solid var(--red);
  padding: 6px 0 6px 26px;
  margin: 32px 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink);
  font-weight: 500;
}
.quote cite {
  display: block;
  margin-top: 14px;
  font-size: 12.5px;
  font-style: normal;
  color: var(--muted);
  font-weight: 400;
}

/* fact list */
.facts { border-top: 1px solid var(--line); }
.facts__row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-2);
  font-size: 14px;
}
.facts__row dt { color: var(--muted-2); font-size: 13px; }
.facts__row dd { margin: 0; color: var(--ink-2); }

/* numbered list */
.nlist { counter-reset: n; }
.nlist li {
  counter-increment: n;
  position: relative;
  padding: 26px 0 26px 62px;
  border-bottom: 1px solid var(--line-2);
}
.nlist li::before {
  content: counter(n, decimal-leading-zero);
  position: absolute;
  left: 0; top: 26px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--red);
}
.nlist li h3 { font-size: 17.5px; margin-bottom: 8px; }
.nlist li p { font-size: 14px; color: var(--muted); line-height: 1.85; }

/* timeline */
.timeline { position: relative; padding-left: 8px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 96px; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--line);
}
.tl-item {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 40px;
  padding-bottom: 40px;
  position: relative;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: 89px; top: 7px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--brand-400);
}
.tl-year {
  font-size: 14px; font-weight: 700; color: var(--brand);
  padding-top: 0;
  font-variant-numeric: tabular-nums;
}
.tl-body h3 { font-size: 16.5px; margin-bottom: 7px; }
.tl-body p { font-size: 13.5px; color: var(--muted); line-height: 1.8; }

/* data table */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); }
table.data {
  width: 100%; border-collapse: collapse; font-size: 14px; background: #fff;
  min-width: 620px;
}
table.data th {
  text-align: left; padding: 16px 20px;
  background: var(--paper-2);
  font-size: 12px; font-weight: 600; letter-spacing: .08em;
  color: var(--ink); text-transform: uppercase;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
table.data td {
  padding: 16px 20px; border-bottom: 1px solid var(--line-2);
  color: var(--ink-2); vertical-align: top; line-height: 1.7;
}
table.data tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover td { background: var(--paper); }
table.data td.num { font-variant-numeric: tabular-nums; font-weight: 600; color: var(--brand); }

/* service blocks */
.svc { display: grid; gap: 0; border-top: 1px solid var(--line); }
.svc__row {
  display: grid;
  grid-template-columns: 260px 1fr 200px;
  gap: 44px;
  padding: 40px 0;
  border-bottom: 1px solid var(--line-2);
  align-items: start;
}
.svc__row h3 { font-size: 19px; margin-bottom: 8px; }
.svc__row .kicker {
  font-size: 11px; letter-spacing: .14em; font-weight: 600;
  color: var(--brand-400); text-transform: uppercase; margin-bottom: 12px;
}
.svc__row p { font-size: 14px; color: var(--muted); line-height: 1.85; }
.svc__row ul { display: flex; flex-direction: column; gap: 9px; }
.svc__row ul li {
  font-size: 13.5px; color: var(--ink-2);
  padding-left: 16px; position: relative; line-height: 1.7;
}
.svc__row ul li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--teal);
}
.svc__aside {
  font-size: 12.5px; color: var(--muted);
  padding: 16px 18px;
  background: var(--paper-2);
  border-radius: var(--radius);
  line-height: 1.75;
}
.svc__aside b { display: block; color: var(--ink); font-size: 12px; letter-spacing: .08em; margin-bottom: 8px; }

/* contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.contact-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 38px 36px;
}
.contact-item { display: flex; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line-2); }
.contact-item:last-child { border-bottom: 0; padding-bottom: 0; }
.contact-item:first-child { padding-top: 0; }
.contact-item .ic {
  width: 38px; height: 38px; flex-shrink: 0;
  border-radius: 50%;
  background: var(--teal-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; color: var(--brand);
}
.contact-item .k { font-size: 11.5px; letter-spacing: .1em; color: var(--muted-2); text-transform: uppercase; margin-bottom: 5px; }
.contact-item .v { font-size: 15.5px; color: var(--ink); font-weight: 500; }
.contact-item .v small { display: block; font-size: 12.5px; color: var(--muted); font-weight: 400; margin-top: 4px; }

.form { display: grid; gap: 18px; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field label {
  display: block; font-size: 12px; font-weight: 600;
  letter-spacing: .06em; color: var(--ink-2); margin-bottom: 8px;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 15px;
  font: inherit;
  font-size: 14.5px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--brand-400);
  box-shadow: 0 0 0 3px rgba(23,160,138,.12);
}
.field textarea { min-height: 130px; resize: vertical; }
.form .btn { justify-self: start; margin-top: 6px; }
.form-note { font-size: 12px; color: var(--muted-2); line-height: 1.7; }

/* 蜜罐字段：正常用户不可见、不可聚焦，仅机器人会填 */
.form-hp {
  position: absolute; left: -9999px; width: 1px; height: 1px;
  overflow: hidden; opacity: 0; pointer-events: none;
}

/* 提交状态 */
.form-status { font-size: 12.5px; line-height: 1.7; margin: -4px 0 0; min-height: 0; }
.form-status:empty { display: none; }
.form-status.is-pending { color: var(--muted); }
.form-status.is-error { color: var(--red); }
.form-status.is-warn { color: #A66A00; }

/* 提交按钮加载态 */
.form .btn.is-loading { opacity: .72; pointer-events: none; }
.form .btn.is-loading svg { animation: btnslide 1s linear infinite; }
@keyframes btnslide {
  0% { transform: translateX(-3px); opacity: .4; }
  50% { transform: translateX(0); opacity: 1; }
  100% { transform: translateX(3px); opacity: .4; }
}

/* 提交成功面板 */
.form-success {
  border: 1px solid var(--line);
  border-left: 3px solid var(--brand-400);
  border-radius: 6px;
  background: var(--paper);
  padding: 26px 24px;
}
.form-success__icon {
  width: 34px; height: 34px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(14,74,61,.08); color: var(--brand-400);
  margin-bottom: 14px;
}
.form-success__icon svg { width: 18px; height: 18px; }
.form-success h4 { font-size: 15px; font-weight: 600; color: var(--ink); margin: 0 0 8px; }
.form-success p { font-size: 13px; color: var(--muted); line-height: 1.75; margin: 0; }
.form-success__hint { margin-top: 10px !important; font-size: 12px !important; color: var(--muted-2) !important; }

/* ==========================================================================
   REVEAL ANIMATION
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .07s; }
.reveal[data-d="2"] { transition-delay: .14s; }
.reveal[data-d="3"] { transition-delay: .21s; }
.reveal[data-d="4"] { transition-delay: .28s; }
.reveal[data-d="5"] { transition-delay: .35s; }

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

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1080px) {
  .nav__menu { display: none; }
  .burger { display: block; }
  .nav__cta { display: none; }

  .hero__grid { grid-template-columns: 1fr; gap: 48px; }
  .hero { min-height: auto; padding-top: calc(var(--nav-h) + 56px); }
  .hero__panel { max-width: 520px; }
  .hero__scroll { display: none; }

  .quick { grid-template-columns: repeat(2, 1fr); }
  .quick__item:nth-child(2) { border-right: 0; }
  .quick__item:nth-child(1), .quick__item:nth-child(2) { border-bottom: 1px solid var(--line-2); }

  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .domains { grid-template-columns: repeat(2, 1fr); }
  .tech { grid-template-columns: 1fr; }
  .plan { grid-template-columns: repeat(2, 1fr); }
  .kpis { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .team { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .partners { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .split, .split--wide { grid-template-columns: 1fr; gap: 44px; }
  .split--reverse > *:first-child { order: 2; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .cta__grid { grid-template-columns: 1fr; gap: 30px; }
  .svc__row { grid-template-columns: 1fr; gap: 20px; }
  .svc__aside { max-width: 420px; }
  .news-row { grid-template-columns: 100px 1fr; gap: 20px; }
  .news-row__tag { display: none; }
}

@media (max-width: 680px) {
  :root { --nav-h: 66px; }
  body { font-size: 15.5px; }
  .wrap, .nav__inner { padding: 0 20px; }
  .section { padding: 68px 0; }
  .section--tight { padding: 52px 0; }
  .section-head { margin-bottom: 36px; }

  .brand__en { display: none; }
  .brand img { width: 34px; height: 34px; }
  .brand__cn { font-size: 14px; }

  .hero h1 { font-size: clamp(28px, 8vw, 36px); }
  .hero__sub { font-size: 15px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; }
  .hero__stat .num { font-size: 24px; min-width: 74px; }
  .hero__en { display: none; }

  .quick { grid-template-columns: 1fr; }
  .quick__item { border-right: 0; border-bottom: 1px solid var(--line-2); padding: 30px 24px; }
  .why-grid { grid-template-columns: 1fr; }
  .domains { grid-template-columns: 1fr; }
  .plan { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .kpi .n { font-size: 32px; }
  .team { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .partners { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 36px; }
  .footer { padding-top: 56px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 12px; }

  .phero { padding: calc(var(--nav-h) + 52px) 0 52px; }
  .timeline::before { left: 72px; }
  .tl-item { grid-template-columns: 62px 1fr; gap: 28px; }
  .tl-item::before { left: 65px; }
  .facts__row { grid-template-columns: 1fr; gap: 6px; }
  .news-row { grid-template-columns: 1fr; gap: 8px; }
  .form .row2 { grid-template-columns: 1fr; }
  .contact-card { padding: 28px 22px; }
  .quote { padding-left: 18px; font-size: 15.5px; }
}

/* utility */
.mt-0 { margin-top: 0; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mt-56 { margin-top: 56px; }
.center { text-align: center; }