/* ============================================================
   OCI — Unseen Studio inspired (warm charcoal palette)
   ============================================================ */

/* 苹方网页字体：Mac 用系统自带，Windows 等从 CDN 加载，全平台统一苹方 */
@font-face {
  font-family: 'PingFang SC';
  src: local('PingFang SC Thin'), local('PingFangSC-Thin'),
       url('https://cdn.jsdelivr.net/npm/font-pingfang-sc@1.0.5/PingFangSC-Thin.woff2') format('woff2');
  font-weight: 100;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'PingFang SC';
  src: local('PingFang SC Light'), local('PingFangSC-Light'),
       url('https://cdn.jsdelivr.net/npm/font-pingfang-sc@1.0.5/PingFangSC-Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'PingFang SC';
  src: local('PingFang SC Regular'), local('PingFang SC'), local('PingFangSC-Regular'),
       url('https://cdn.jsdelivr.net/npm/font-pingfang-sc@1.0.5/PingFangSC-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'PingFang SC';
  src: local('PingFang SC Medium'), local('PingFangSC-Medium'),
       url('https://cdn.jsdelivr.net/npm/font-pingfang-sc@1.0.5/PingFangSC-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'PingFang SC';
  src: local('PingFang SC Semibold'), local('PingFangSC-Semibold'),
       url('https://cdn.jsdelivr.net/npm/font-pingfang-sc@1.0.5/PingFangSC-Semibold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg:        #333333;
  --bg-deep:   #2d2d2d;
  --bg-light:  #3a3a3a;
  --text:      #c8c8c8;
  --text-mute: #777777;
  --text-ghost:#4a4a4a;
  --text-dim:  #5a5a5a;
  --white:     #e8e8e8;
  --border:    rgba(255,255,255,0.06);
  --warm:      #E8DDD5;
  /* 全平台苹方优先：Mac 用系统，Windows 等用上面 @font-face 从 CDN 加载的苹方 */
  --font-cjk:    'PingFang SC', 'PingFang TC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-display: var(--font-cjk), 'Space Grotesk', system-ui, sans-serif;
  --font-body:    var(--font-cjk), system-ui, sans-serif;
  --font-mono:    'Roboto Mono', monospace;
  --font-unseen:  var(--font-cjk), 'Space Grotesk', system-ui, sans-serif;
  --font-nav:     'Inter', system-ui, sans-serif;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: #212121;
  color: var(--text);
  font-family: 'PingFang SC', 'PingFang TC', 'Hiragino Sans GB', 'Noto Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  cursor: auto;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

a { color: inherit; text-decoration: none; cursor: pointer; }
button { cursor: pointer; }
img { max-width: 100%; display: block; }

body > header,
body > footer:not(.site-footer),
body > .scroll-progress-container,
body > .page-transition,
body > nav.mobile-nav {
  display: none !important;
}

/* ============================================================
   CUSTOM CURSOR（圆点已隐藏，保留圆环；Enter 按钮保留手型）
   ============================================================ */
.cursor-dot {
  display: none !important;
}
.cursor-dot {
  position: fixed;
  top: 0; left: 0;
  width: 8px; height: 8px;
  background: var(--text);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10001;
  transform: translate(-50%, -50%);
  transition: width 0.25s ease, height 0.25s ease, background 0.25s ease, opacity 0.25s ease;
  mix-blend-mode: difference;
}
.cursor-ring {
  position: fixed;
  top: 0; left: 0;
  width: 36px; height: 36px;
  border: 1px solid rgba(200,200,200,0.25);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease, opacity 0.3s ease;
  mix-blend-mode: difference;
}
body.cursor-hover .cursor-dot {
  width: 14px; height: 14px;
}
body.cursor-hover .cursor-ring {
  width: 50px; height: 50px;
  border-color: rgba(200,200,200,0.35);
}
body.cursor-hidden .cursor-dot,
body.cursor-hidden .cursor-ring {
  opacity: 0;
}

/* ============================================================
   LAYER 1: LOADER (Unseen 3D cube + progress reveal)
   ============================================================ */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 12000;
  background: #212121;
  color: #424242;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-unseen);
  text-align: center;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.loader.hidden { display: none; }

.loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}
.loader__title,
.loader__tagline {
  position: relative;
  z-index: 1;
}
.loader__title {
  display: block;
  font-size: 1.125rem;
  letter-spacing: -0.025rem;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}
.loader__tagline {
  font-size: 1rem;
  letter-spacing: -0.025rem;
  line-height: 1.15;
  margin-bottom: 1.75rem;
}

/* --- 3D Cube --- */
.loader__wrap {
  perspective: 32rem;
  position: absolute;
  top: -9rem;
  z-index: -1;
}
.loader__box {
  height: 8rem;
  margin: 0 auto 1rem;
  pointer-events: none;
  position: relative;
  transform-style: preserve-3d;
  width: 8rem;
}
.loader__box,
.loader__box div {
  display: flex;
  align-items: center;
  justify-content: center;
}
.loader__box div {
  background: #212121;
  font-size: 4rem;
  height: 100%;
  padding: 5rem;
  position: absolute;
  width: 100%;
}
.loader__box div:first-child    { transform: rotateY(0deg)    translateZ(4rem); }
.loader__box div:nth-child(2)   { transform: rotateY(-90deg)  translateZ(4rem); }
.loader__box div:nth-child(3)   { transform: rotateX(-90deg) rotate(-90deg) translateZ(4rem); }
.loader__box div:nth-child(4)   { transform: rotateX(180deg) rotate(-90deg) translateZ(4rem); }
.loader__box div:nth-child(5)   { transform: rotateX(90deg)   translateZ(4rem); }
.loader__box div:nth-child(6)   { transform: rotateY(90deg) rotate(90deg)  translateZ(4rem); }
.loader__box--pink div {
  background: #efded9;
}
.loader--animate .loader__box {
  animation: loaderCube 2.6s cubic-bezier(0.34, 1.56, 0.64, 1) infinite;
}
@keyframes loaderCube {
  0%    { transform: rotateY(0)      rotateX(0); }
  16.6% { transform: rotateY(90deg)  rotateX(0); }
  33.3% { transform: rotateY(90deg)  rotateX(0)      rotate(90deg); }
  50%   { transform: rotateY(180deg) rotateX(0)      rotate(90deg); }
  66.6% { transform: rotateY(180deg) rotateX(-90deg) rotate(90deg); }
  83.3% { transform: rotateY(270deg) rotateX(-90deg) rotate(90deg); }
  100%  { transform: rotateY(270deg) rotateX(-90deg) rotate(90deg) rotateX(90deg); }
}

/* --- Progress reveal (pink layer slides up) --- */
.loader__progress {
  background: #efded9;
  overflow: hidden;
  position: absolute;
  top: 0;
  left: 0;
  transform: translateY(100%);
  z-index: 1;
}
.loader__progress,
.loader__progress > div {
  height: 100%;
  width: 100%;
  transition: transform 1s ease-out;
}
.loader__progress > div {
  transform: translateY(-100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================================
   LAYER 2: SPLASH SCREEN (eyes + Enter) — Unseen exact replica
   ============================================================ */
.splash {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: #efded9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s ease;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  /* 与 .loader 一致，让下方文字继承相同的字体与颜色 */
  font-family: var(--font-unseen);
  color: #424242;
  text-align: center;
}
.splash.active {
  opacity: 1;
  pointer-events: auto;
}
.splash.exit {
  transition: transform 1s cubic-bezier(0.76, 0, 0.24, 1), opacity 0.3s ease 0.7s;
  transform: translateY(-100%);
  pointer-events: none;
}

.splash-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.splash.active .splash-center {
  opacity: 1;
  transform: translateY(0);
}

/* --- SVG Eyes (Unseen original, absolute above text) --- */
.splash-eyes-wrap {
  position: absolute;
  top: -9.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 12.8rem;
}
@media (min-width: 768px) {
  .splash-eyes-wrap { top: -10.5rem; width: 14.4rem; }
}
.splash-eyes-svg {
  width: 100%;
  height: auto;
  display: none;
  overflow: visible;
  transform: scale(0);
}
.splash-eyes-svg .js-eyes-normal,
.splash-eyes-svg .js-eyes-heart {
  transform-origin: center center;
}
.splash-eyes-svg .js-eyes-normal {
  transition: opacity 0.15s ease;
}
.splash-eyes-svg .js-eyes-heart {
  transform: scale(0);
}

/* --- Brand text: 与 .loader__title 完全相同的属性，字体/颜色继承自 .splash --- */
.splash-brand {
  font-size: 1.125rem;
  letter-spacing: -0.025rem;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  position: relative;
  z-index: 1;
}
.splash-brand sup {
  font-size: 8px;
  vertical-align: super;
  margin-left: 1px;
}

/* --- Description: 与 .loader__tagline 完全相同的属性，字体/颜色继承自 .splash --- */
.splash-desc {
  font-size: 1rem;
  letter-spacing: -0.025rem;
  line-height: 1.15;
  margin-bottom: 1.75rem;
  position: relative;
  z-index: 1;
}

/* --- Enter button (Unseen exact replica) --- */
.splash-enter {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  position: absolute;
  bottom: -2.5rem;
  display: inline-block;
  background: #fff;
  border: 2px solid #212121;
  border-radius: 1.3em;
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  text-decoration: none;
  z-index: 2;
  color: #212121;
}
/* Dark fill that slides up from bottom on hover */
.splash-enter-bg {
  position: absolute;
  inset: 0;
  background: #212121;
  transform: translateY(100%);
  transition: transform 0.6s cubic-bezier(0.87, 0, 0.13, 1);
  z-index: 0;
}
.splash-enter:hover .splash-enter-bg {
  transform: translateY(0);
}
/* Content wrapper (shared between original + clone) */
.splash-enter-content {
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  padding: calc(0.8rem - 2px) 1.5rem;
  position: relative;
  z-index: 1;
  transition: transform 0.6s cubic-bezier(0.87, 0, 0.13, 1);
}
/* Original content: same as loading page text */
.splash-enter-content--original {
  color: #424242;
  fill: #424242;
}
.splash-enter:hover .splash-enter-content--original {
  transform: translateY(-250%);
}
/* Cloned content: white text, starts below, slides IN on hover */
.splash-enter-content--clone {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: calc(0.8rem - 2px) 1.5rem;
  color: #fff;
  fill: #fff;
  transform: translateY(250%);
  transition: transform 0.8s cubic-bezier(0.87, 0, 0.13, 1);
}
.splash-enter:hover .splash-enter-content--clone {
  transform: translateY(0);
}
/* Text */
.splash-enter-label {
  font-family: var(--font-unseen);
  font-size: 1.05rem;
  line-height: 0.9rem;
  font-weight: 400;
  white-space: nowrap;
}
/* Arrow icon */
.splash-enter-arrow {
  width: 9px;
  height: 11px;
  margin-left: 9px;
  flex-shrink: 0;
}

/* --- Bottom text (Unseen: .loader__btn, absolute bottom: 4rem) --- */
.splash-bottom {
  position: absolute;
  bottom: 4rem;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.splash.active .splash-bottom {
  opacity: 1;
  visibility: visible;
}
.splash-bottom-text {
  font-family: var(--font-unseen);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: uppercase;
  color: #424242;
  cursor: pointer;
  position: relative;
  padding-bottom: 0.1rem;
  overflow: hidden;
  display: inline-block;
}
.splash-bottom-text::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50%;
  height: 1px;
  background: #424242;
  transition: transform 0.2s ease-out;
}
.splash-bottom-text::before {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 50%;
  height: 1px;
  background: #424242;
  transition: transform 0.2s ease-out;
}
.splash-bottom-text:hover::after {
  transform: translateX(-101%);
}
.splash-bottom-text:hover::before {
  transform: translateX(101%);
}

/* ============================================================
   LAYER 3: SITE WRAPPER
   ============================================================ */
.site {
  opacity: 0;
  transition: opacity 0.7s ease 0.3s;
}
.site.visible {
  opacity: 1;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2.5rem;
  background: #212121;
  transition: box-shadow 0.4s ease;
}
.site-header.scrolled {
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

/* --- Logo --- */
.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  pointer-events: none;
}
.logo-text {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.04em;
  line-height: 1;
  cursor: default;
  -webkit-user-select: none;
  user-select: none;
}
.logo-text sup {
  font-size: 0.4em;
  vertical-align: super;
  margin-left: 2px;
  opacity: 0.5;
}

/* --- Nav links --- */
.header__right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
/* 右上角导航栏：Inter，字重与字间距 */
.nav-link {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

/* 右上角白框按钮 Get Started */
.header-cta,
.get-started-btn {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-transform: none;
  color: #212121;
  background: var(--white);
  text-decoration: none;
  padding: 0.55rem 1.4rem;
  border-radius: 6px;
  margin-left: 12px;
  transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  white-space: nowrap;
}
.header-cta:hover,
.get-started-btn:hover {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

/* ============================================================
   3D PARALLAX BACKGROUND ELEMENTS
   ============================================================ */
.hero-parallax-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.parallax-shape {
  position: absolute;
  will-change: transform;
}

.parallax-ring {
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.04);
}
.parallax-ring--1 {
  width: 500px; height: 500px;
  top: -10%; right: -8%;
}
.parallax-ring--2 {
  width: 300px; height: 300px;
  bottom: 5%; left: -5%;
  border-color: rgba(255,255,255,0.03);
}

.parallax-dot {
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.parallax-dot--1 {
  width: 6px; height: 6px;
  top: 25%; right: 20%;
}
.parallax-dot--2 {
  width: 4px; height: 4px;
  top: 60%; left: 15%;
}
.parallax-dot--3 {
  width: 8px; height: 8px;
  bottom: 20%; right: 35%;
  background: rgba(255,255,255,0.04);
}

.parallax-line {
  background: rgba(255,255,255,0.03);
}
.parallax-line--1 {
  width: 120px; height: 1px;
  top: 35%; right: 10%;
  transform-origin: center;
}
.parallax-line--2 {
  width: 1px; height: 80px;
  bottom: 30%; left: 25%;
}

.parallax-glow {
  width: 400px; height: 400px;
  top: 20%; left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.02) 0%, transparent 70%);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding: 120px 48px 80px;
  overflow: hidden;
  background: #212121;
  perspective: 1200px;
}

/* Vanta 层 */
.vanta-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-inner {
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  font-family: 'PingFang SC', 'PingFang TC', 'Hiragino Sans GB', 'Noto Sans SC', 'Microsoft YaHei', var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 28px;
}

.hero-title {
  font-family: 'PingFang SC', 'PingFang TC', 'Hiragino Sans GB', 'Noto Sans SC', 'Microsoft YaHei', var(--font-display);
  font-size: clamp(42px, 8vw, 88px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 32px;
}
.hero-title-line { display: block; overflow: hidden; }
.hero-title-word {
  display: inline-block;
  transform: translateY(110%);
  opacity: 0;
  transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.9s ease;
}
.hero-title-word.visible { transform: translateY(0); opacity: 1; }

.hero-sub {
  font-family: 'PingFang SC', 'PingFang TC', 'Hiragino Sans GB', 'Noto Sans SC', 'Microsoft YaHei', var(--font-body);
  font-size: 16px;
  color: #e5ddd4;
  opacity: 0.8;
  max-width: 500px;
  line-height: 1.8;
  margin-bottom: 72px;
  font-weight: 300;
}

.hero-stats {
  display: flex;
  gap: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.hero-stat { display: flex; align-items: baseline; gap: 2px; flex-wrap: wrap; }
.hero-stat-num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 400;
  color: #ffffff;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.hero-stat-plus {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 300;
  color: var(--text-mute);
  margin-left: 2px;
}
.hero-stat-label {
  width: 100%;
  font-size: 12px;
  font-family: 'PingFang SC', 'PingFang TC', 'Hiragino Sans GB', 'Noto Sans SC', 'Microsoft YaHei', var(--font-mono);
  color: var(--text-dim);
  opacity: 0.5;
  margin-top: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: heroScrollBreathe 2.5s ease-in-out infinite;
}
.hero-scroll-text {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-ghost);
}
.hero-scroll-line {
  width: 1px; height: 36px;
  background: linear-gradient(to bottom, var(--text-ghost), transparent);
}
@keyframes heroScrollBreathe {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50%      { opacity: 0.3; transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  padding: 120px 48px;
  position: relative;
  background: var(--warm);
  color: #2d2d2d;
}

.services-inner {
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}

.section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #999;
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 400;
  letter-spacing: -0.03em;
  margin-bottom: 64px;
  color: #2d2d2d;
}

.services-list { display: flex; flex-direction: column; }

.service-item {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 40px 24px;
  border-top: 1px solid rgba(0,0,0,0.08);
  text-decoration: none;
  cursor: none;
  position: relative;
  overflow: hidden;
  transition: padding-left 0.5s cubic-bezier(0.25, 1, 0.5, 1), background 0.4s ease;
  color: #2d2d2d;
}
.service-item:last-child { border-bottom: 1px solid rgba(0,0,0,0.08); }
.service-item:hover { padding-left: 40px; background: rgba(0,0,0,0.03); }
.service-item:hover .service-arrow { opacity: 1; transform: translateX(0); }
.service-item:hover .service-title { color: #000; }
.service-item:hover .service-num { color: #999; }

.service-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #bbb;
  flex-shrink: 0;
  width: 40px;
  transition: color 0.4s ease;
}
.service-body { flex: 1; position: relative; }
.service-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  margin-bottom: 10px;
  transition: color 0.4s ease;
  letter-spacing: -0.01em;
  color: #2d2d2d;
}
.service-desc {
  font-size: 14px;
  color: #888;
  line-height: 1.7;
  max-width: 560px;
  font-weight: 300;
}
.service-arrow {
  font-size: 20px;
  color: #bbb;
  flex-shrink: 0;
  opacity: 0;
  transform: translateX(-12px);
  transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  position: relative;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  padding: 80px 48px 40px;
  background: var(--bg-deep);
  border-top: none;
}
.footer-inner { max-width: 1400px; margin: 0 auto; }
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 16px;
  color: var(--text);
  letter-spacing: 0.05em;
}
.footer-logo sup { font-size: 8px; vertical-align: super; opacity: 0.5; }
.footer-tagline { font-size: 13px; color: var(--text-dim); max-width: 260px; line-height: 1.7; font-weight: 300; }
.footer-col-title {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 20px;
}
.footer-link {
  display: block;
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 12px;
  transition: color 0.3s ease, transform 0.3s ease;
  font-weight: 300;
}
.footer-link:hover { color: var(--white); transform: translateX(4px); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-ghost);
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: var(--text-ghost); transition: color 0.2s ease; }
.footer-bottom-links a:hover { color: var(--text-mute); }

/* ============================================================
   ANIMATION HELPERS
   ============================================================ */
.anim-reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.anim-reveal.visible { opacity: 1; transform: translateY(0); }

.hero-stats .hero-stat:nth-child(1) { transition-delay: 0s; }
.hero-stats .hero-stat:nth-child(2) { transition-delay: 0.12s; }
.hero-stats .hero-stat:nth-child(3) { transition-delay: 0.24s; }
.hero-stats .hero-stat:nth-child(4) { transition-delay: 0.36s; }

.services-list .service-item:nth-child(1) { transition-delay: 0s; }
.services-list .service-item:nth-child(2) { transition-delay: 0.1s; }
.services-list .service-item:nth-child(3) { transition-delay: 0.2s; }
.services-list .service-item:nth-child(4) { transition-delay: 0.3s; }

/* ============================================================
   RESPONSIVE / 手机适配
   ============================================================ */
/* 刘海屏安全区域（iPhone X+、带挖孔安卓） */
@supports (padding: env(safe-area-inset-top)) {
  .site-header {
    padding-left: max(1.25rem, env(safe-area-inset-left));
    padding-right: max(2.5rem, env(safe-area-inset-right));
  }
  .site-footer {
    padding-bottom: max(24px, env(safe-area-inset-bottom));
  }
}

@media (max-width: 1024px) {
  .hero { padding: 100px 32px 60px; }
  .services { padding: 80px 32px; }
  .site-footer { padding: 60px 32px 32px; }
  .hero-stats { gap: 40px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  body { cursor: auto; }
  a, button { cursor: auto; }
  .cursor-dot, .cursor-ring { display: none !important; }
  /* 触摸高亮 */
  a, button { -webkit-tap-highlight-color: rgba(255, 255, 255, 0.08); }

  .site-header {
    padding: 1rem max(1.25rem, env(safe-area-inset-left)) 1rem max(1.25rem, env(safe-area-inset-right));
  }
  .header-nav { display: none; }
  .header-cta {
    font-size: 0.8rem;
    padding: 0.6rem 1.25rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .hero {
    padding: 80px max(20px, env(safe-area-inset-left)) 60px max(20px, env(safe-area-inset-right));
  }
  .hero-title { font-size: clamp(36px, 10vw, 56px); }
  .hero-sub { font-size: 14px; margin-bottom: 40px; }
  .hero-stats { flex-wrap: wrap; gap: 32px; }
  .hero-stat { min-width: 120px; }
  .hero-scroll { display: none; }
  .vanta-wrap { display: none; }

  .services {
    padding: 60px max(20px, env(safe-area-inset-left)) 60px max(20px, env(safe-area-inset-right));
  }
  .service-item {
    flex-direction: column;
    gap: 12px;
    padding: 28px 16px;
    min-height: 44px;
    box-sizing: border-box;
  }
  .service-item:hover { padding-left: 16px; }
  .service-num { width: auto; }
  .service-title { font-size: 20px; }
  .service-arrow { display: none; }

  .site-footer {
    padding: 48px max(20px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
  }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .footer-link {
    padding: 8px 0;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .splash-eyes-wrap { width: 10rem; top: -7.5rem; }
}

@media (max-width: 480px) {
  .hero {
    padding-top: 60px;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  .hero-stats { gap: 24px; }
  .hero-stat-num { font-size: 26px; }
  .hero-sub { font-size: 13px; }
  .section-title { margin-bottom: 40px; font-size: clamp(24px, 6vw, 32px); }
  .services { padding: 48px 16px; }
  .site-footer { padding: 40px 16px max(20px, env(safe-area-inset-bottom)) 16px; }
  .footer-tagline { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .anim-reveal { opacity: 1; transform: none; }
  .hero-title-word { opacity: 1; transform: none; }
  .loader { display: none; }
  .splash { display: none; }
  .site { opacity: 1; }
  .cursor-dot, .cursor-ring { display: none; }
}

/* ============================================================
   Local replica supporting pages
   ============================================================ */
.local-page { background: #212121; color: var(--text); min-height: 100vh; }
.local-page .site-header { opacity: 1; visibility: visible; transform: none; pointer-events: auto; }
.local-main { padding-top: 90px; }
.page-hero { min-height: 58vh; display: flex; align-items: flex-end; padding: 120px 64px 72px; position: relative; overflow: hidden; background: #212121; }
.page-hero::before { content: ""; position: absolute; inset: auto 0 -36% 0; height: 62%; background: radial-gradient(circle at 50% 50%, rgba(232,221,213,0.1), transparent 65%); pointer-events: none; }
.page-hero-inner, .local-section-inner { width: min(1400px, 100%); margin: 0 auto; position: relative; }
.page-kicker, .local-kicker { display: block; margin-bottom: 18px; color: var(--text-mute); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.page-title { margin: 0 0 24px; color: #fff; font-family: var(--font-display); font-size: clamp(46px, 8vw, 112px); font-weight: 600; line-height: 0.92; letter-spacing: -0.04em; }
.page-sub { max-width: 620px; color: #e5ddd4; font-size: 16px; font-weight: 300; line-height: 1.9; }
.local-section { padding: 96px 64px; }
.local-section.warm { background: var(--warm); color: #2d2d2d; }
.local-section.dark { background: var(--bg-deep); }
.local-section-title { margin: 0 0 44px; font-family: var(--font-display); font-size: clamp(32px, 5.4vw, 72px); font-weight: 500; line-height: 1; letter-spacing: -0.04em; }
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.filter, .tag { display: inline-flex; align-items: center; min-height: 34px; padding: 0 14px; border: 1px solid rgba(255,255,255,0.11); border-radius: 999px; color: var(--text-mute); font-size: 12px; }
.filter.active { border-color: transparent; background: var(--warm); color: #212121; }
.product-grid, .local-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.08); }
.product-card, .local-card { min-height: 280px; padding: 28px; background: #2d2d2d; transition: background 0.35s ease, transform 0.35s ease; }
.warm .local-card { background: rgba(255,255,255,0.38); }
.product-card:hover, .local-card:hover { background: #333333; }
.product-card h3, .local-card h3 { margin: 0 0 18px; color: #fff; font-size: 24px; font-weight: 500; letter-spacing: -0.02em; }
.warm .local-card h3 { color: #2d2d2d; }
.product-meta { display: grid; gap: 8px; margin: 0 0 22px; color: var(--text-mute); font-size: 13px; }
.warm .local-card p, .local-card p { color: #888; font-size: 14px; line-height: 1.85; }
.stock { color: #e5ddd4; font-family: var(--font-mono); font-size: 12px; }
.stock.empty { color: #777; }
.price { margin: 18px 0; color: #fff; font-family: var(--font-display); font-size: 32px; font-weight: 600; letter-spacing: -0.04em; }
.price small { color: var(--text-mute); font-size: 11px; letter-spacing: 0; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 18px; border: 1px solid rgba(255,255,255,0.12); border-radius: 999px; background: rgba(255,255,255,0.06); color: #fff; font-size: 13px; transition: background 0.25s ease, transform 0.25s ease; }
.button:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }
.button.primary { background: var(--white); color: #212121; }
.systems { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px; background: rgba(0,0,0,0.08); border: 1px solid rgba(0,0,0,0.08); }
.system { padding: 22px; background: rgba(255,255,255,0.38); min-height: 104px; }
.system strong { display: block; margin-bottom: 8px; color: #2d2d2d; font-weight: 500; }
.system span { color: #888; font-family: var(--font-mono); font-size: 11px; }
.command-list { display: grid; gap: 1px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.08); }
.command { padding: 28px; background: #2d2d2d; }
.command-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; }
.command h3 { margin: 0 0 8px; color: #fff; font-weight: 500; }
.small { color: var(--text-mute); font-size: 13px; }
code { display: block; margin-top: 18px; padding: 18px; overflow-x: auto; background: #212121; color: #e5ddd4; font-family: var(--font-mono); font-size: 12px; line-height: 1.7; user-select: text; }
.copy-btn { min-width: 96px; min-height: 36px; border: 1px solid rgba(255,255,255,0.12); border-radius: 999px; background: transparent; color: #fff; }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 120px 24px 64px; background: #efded9; color: #424242; }
.login-box { width: min(440px, 100%); }
.login-box .page-title { color: #212121; font-size: clamp(42px, 8vw, 68px); }
.field { display: grid; gap: 8px; margin-bottom: 16px; color: #777; font-size: 13px; }
.field input { width: 100%; height: 48px; border: 1px solid rgba(0,0,0,0.16); border-radius: 0; padding: 0 14px; background: rgba(255,255,255,0.42); color: #212121; font: inherit; }

.site-header .nav { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { font-family: var(--font-display); font-size: 1.4rem; font-weight: 600; color: var(--white); letter-spacing: 0.04em; }
.mark { display: none; }
.nav-links, .nav-actions { display: flex; align-items: center; gap: 4px; }
.nav-links a { font-family: 'Inter', sans-serif; font-size: 0.9rem; font-weight: 500; color: rgba(255,255,255,0.8); padding: 0.5rem 1rem; border-radius: 6px; }
.nav-links a:hover, .nav-links a.active { color: #fff; background: rgba(255,255,255,0.06); }
.nav-actions { gap: 8px; }
.page-hero .section-inner, .section .section-inner, .footer .section-inner { width: min(1400px, 100%); margin: 0 auto; position: relative; }
.page-hero .eyebrow { display: block; margin-bottom: 18px; color: var(--text-mute); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.page-hero h1 { margin: 0 0 24px; color: #fff; font-family: var(--font-display); font-size: clamp(46px, 8vw, 112px); font-weight: 600; line-height: 0.92; letter-spacing: -0.04em; }
.section { padding: 96px 64px; background: #212121; }
.section:nth-of-type(even) { background: var(--warm); color: #2d2d2d; }
.section .section-head { margin-bottom: 44px; }
.section .section-head .eyebrow { display: block; margin-bottom: 18px; color: var(--text-mute); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.section h2 { margin: 0; font-family: var(--font-display); font-size: clamp(32px, 5.4vw, 72px); font-weight: 500; line-height: 1; letter-spacing: -0.04em; }
.section .section-head p:not(.eyebrow) { max-width: 620px; margin-top: 18px; color: #888; font-size: 14px; line-height: 1.85; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.08); }
.card { min-height: 220px; padding: 28px; background: #2d2d2d; }
.section:nth-of-type(even) .card { background: rgba(255,255,255,0.38); }
.card h3 { margin: 0 0 16px; color: #fff; font-weight: 500; font-size: 24px; }
.section:nth-of-type(even) .card h3 { color: #2d2d2d; }
.card p { color: #888; font-size: 14px; line-height: 1.85; }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.footer { padding: 80px 64px 40px; background: var(--bg-deep); color: var(--text); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 48px; }
.footer h4 { margin: 0 0 18px; color: var(--text-ghost); font-family: var(--font-mono); font-size: 10px; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; }
.footer p, .footer a { color: var(--text-dim); font-size: 13px; }
.footer-links { display: grid; gap: 10px; }
.copyright { display: flex; justify-content: space-between; gap: 20px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); color: var(--text-ghost); font-size: 12px; }

@media (max-width: 960px) {
  .page-hero, .local-section { padding-left: 32px; padding-right: 32px; }
  .product-grid, .local-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .systems { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid, .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .page-hero, .local-section { padding-left: 16px; padding-right: 16px; }
  .product-grid, .local-grid, .systems { grid-template-columns: 1fr; }
  .command-top { flex-direction: column; }
  .site-header .nav { flex-wrap: wrap; }
  .nav-links { order: 3; width: 100%; overflow-x: auto; }
  .nav-actions { display: none; }
  .section { padding-left: 16px; padding-right: 16px; }
  .grid, .footer-grid { grid-template-columns: 1fr; }
  .footer { padding-left: 16px; padding-right: 16px; }
  .copyright { flex-direction: column; }
}