/* =========================================================
   影伴造物 · 品牌官网样式
   主题：温柔 · 未来 · 沉浸 · 情绪共鸣
   ========================================================= */

/* ---------- 设计变量 ---------- */
:root {
  /* 黑曜石深色背景层 */
  --bg-0: #06060c;
  --bg-1: #0a0a14;
  --bg-2: #0e0f1c;
  --bg-glass: rgba(255, 255, 255, 0.035);
  --bg-glass-strong: rgba(255, 255, 255, 0.06);

  /* 情绪色谱（克制而丰富） */
  --nebula-blue: #5b8cff;
  --nebula-blue-deep: #3a5bd9;
  --moon-silver: #d9def0;
  --soft-violet: #b39dff;
  --teal-glow: #5fe6cf;
  --soft-pink: #ff9ec7;

  /* 文本 */
  --text-strong: #f2f4ff;
  --text: #c4c9de;
  --text-dim: #888ea8;
  --text-faint: #5c6180;

  /* 描边与光 */
  --line: rgba(255, 255, 255, 0.08);
  --line-soft: rgba(255, 255, 255, 0.05);
  --glow-blue: rgba(91, 140, 255, 0.5);
  --glow-violet: rgba(179, 157, 255, 0.45);
  --glow-teal: rgba(95, 230, 207, 0.4);
  --glow-pink: rgba(255, 158, 199, 0.4);

  /* 排版 */
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "PingFang SC", serif;
  --font-sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", "Segoe UI", sans-serif;

  --container: 1180px;
  --radius: 22px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--text);
  background: var(--bg-0);
  line-height: 1.85;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

/* 深色背景的纵向氛围渐变 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(120% 80% at 50% -10%, #141430 0%, transparent 55%),
    radial-gradient(90% 70% at 85% 110%, #0c1a24 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 40%, #050509 100%);
}

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

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

main {
  flex: 1;
}

::selection {
  background: rgba(179, 157, 255, 0.3);
  color: #fff;
}

/* ---------- 通用容器与文本工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  position: relative;
  padding: clamp(6rem, 12vh, 11rem) 0;
}

.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--teal-glow);
  font-weight: 400;
  margin-bottom: 1.6rem;
  opacity: 0.85;
}

.section__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.9rem, 4.4vw, 3.3rem);
  line-height: 1.35;
  color: var(--text-strong);
  letter-spacing: 0.02em;
  margin-bottom: 2rem;
}

.section__intro {
  max-width: 640px;
  font-size: clamp(1rem, 1.3vw, 1.12rem);
  color: var(--text-dim);
  margin-bottom: 3.5rem;
}

/* 渐变文字（情绪光谱） */
.grad-text {
  background: linear-gradient(
    100deg,
    var(--nebula-blue) 0%,
    var(--soft-violet) 40%,
    var(--soft-pink) 65%,
    var(--teal-glow) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: hue-flow 9s linear infinite;
}

@keyframes hue-flow {
  to {
    background-position: 200% center;
  }
}

.only-mobile {
  display: none;
}

/* =========================================================
   全站环境光（流体光影 / 星云）
   ========================================================= */
.ambient {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}

.ambient__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  mix-blend-mode: screen;
  will-change: transform;
}

.ambient__blob--blue {
  width: 46vw;
  height: 46vw;
  top: -8vw;
  left: -6vw;
  background: radial-gradient(circle, var(--nebula-blue) 0%, transparent 70%);
  animation: drift-a 26s var(--ease) infinite alternate;
}

.ambient__blob--violet {
  width: 40vw;
  height: 40vw;
  top: 32vh;
  right: -10vw;
  background: radial-gradient(circle, var(--soft-violet) 0%, transparent 70%);
  opacity: 0.42;
  animation: drift-b 32s var(--ease) infinite alternate;
}

.ambient__blob--teal {
  width: 34vw;
  height: 34vw;
  bottom: -6vw;
  left: 8vw;
  background: radial-gradient(circle, var(--teal-glow) 0%, transparent 70%);
  opacity: 0.32;
  animation: drift-c 30s var(--ease) infinite alternate;
}

.ambient__blob--pink {
  width: 26vw;
  height: 26vw;
  bottom: 18vh;
  right: 14vw;
  background: radial-gradient(circle, var(--soft-pink) 0%, transparent 70%);
  opacity: 0.28;
  animation: drift-b 36s var(--ease) infinite alternate-reverse;
}

@keyframes drift-a {
  to {
    transform: translate(14vw, 10vh) scale(1.15);
  }
}
@keyframes drift-b {
  to {
    transform: translate(-12vw, -8vh) scale(1.1);
  }
}
@keyframes drift-c {
  to {
    transform: translate(10vw, -10vh) scale(1.2);
  }
}

/* 细腻颗粒，避免渐变断层与廉价感 */
.ambient__grain {
  position: absolute;
  inset: -50%;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* =========================================================
   顶部导航
   ========================================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  transition: background 0.5s var(--ease), backdrop-filter 0.5s var(--ease),
    border-color 0.5s var(--ease);
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  background: rgba(8, 8, 16, 0.6);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line-soft);
}

.nav__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

/* 纯 logo 图片，无底盘；仅以极轻的光晕贴合深色梦幻背景 */
.brand__logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
  animation: logo-glow 5s ease-in-out infinite;
}

@keyframes logo-glow {
  0%, 100% {
    filter: drop-shadow(0 0 7px rgba(91, 140, 255, 0.28));
  }
  50% {
    filter: drop-shadow(0 0 13px rgba(179, 157, 255, 0.45));
  }
}

.brand__name {
  font-family: var(--font-serif);
  font-size: 1.22rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--text-strong);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav__link {
  position: relative;
  font-size: 0.92rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  padding: 8px 16px;
  border-radius: 999px;
  transition: color 0.3s var(--ease);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--nebula-blue), var(--teal-glow));
  transform: translateX(-50%);
  transition: width 0.4s var(--ease);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--text-strong);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  width: 60%;
}

.nav__cta {
  margin-left: 14px;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--text-strong);
  padding: 9px 22px;
  border-radius: 999px;
  border: 1px solid rgba(179, 157, 255, 0.35);
  background: rgba(179, 157, 255, 0.08);
  transition: all 0.35s var(--ease);
}

.nav__cta:hover {
  border-color: var(--soft-violet);
  background: rgba(179, 157, 255, 0.16);
  box-shadow: 0 0 24px var(--glow-violet);
}

/* 移动端汉堡 */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: none;
  border: none;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav__toggle span {
  width: 22px;
  height: 1.6px;
  background: var(--text-strong);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
}

.nav.is-open .nav__toggle span:nth-child(1) {
  transform: translateY(6.6px) rotate(45deg);
}
.nav.is-open .nav__toggle span:nth-child(2) {
  opacity: 0;
}
.nav.is-open .nav__toggle span:nth-child(3) {
  transform: translateY(-6.6px) rotate(-45deg);
}

/* =========================================================
   首屏 Hero
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 100px;
  overflow: hidden;
}

.hero__particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* 光带 */
.hero__bands {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.band {
  position: absolute;
  left: -30%;
  width: 160%;
  height: 220px;
  filter: blur(40px);
  opacity: 0.5;
  border-radius: 50%;
  mix-blend-mode: screen;
}

.band--1 {
  top: 24%;
  background: linear-gradient(90deg, transparent, var(--nebula-blue), transparent);
  transform: rotate(-12deg);
  animation: band-sway 18s ease-in-out infinite alternate;
}
.band--2 {
  top: 48%;
  background: linear-gradient(90deg, transparent, var(--soft-violet), transparent);
  opacity: 0.4;
  transform: rotate(8deg);
  animation: band-sway 22s ease-in-out infinite alternate-reverse;
}
.band--3 {
  top: 66%;
  height: 160px;
  background: linear-gradient(90deg, transparent, var(--teal-glow), transparent);
  opacity: 0.3;
  transform: rotate(-6deg);
  animation: band-sway 26s ease-in-out infinite alternate;
}

@keyframes band-sway {
  0% { transform: translateY(0) rotate(-12deg); }
  100% { transform: translateY(-40px) rotate(-4deg); }
}

/* 标题背后的情绪能量核心 */
.hero__core {
  position: absolute;
  z-index: 1;
  top: 46%;
  left: 50%;
  width: min(640px, 80vw);
  height: min(640px, 80vw);
  transform: translate(-50%, -50%);
  background: radial-gradient(
    circle,
    rgba(179, 157, 255, 0.28) 0%,
    rgba(91, 140, 255, 0.16) 32%,
    rgba(95, 230, 207, 0.07) 50%,
    transparent 68%
  );
  filter: blur(20px);
  border-radius: 50%;
  animation: core-pulse 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes core-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.9; }
  50% { transform: translate(-50%, -50%) scale(1.12); opacity: 1; }
}

.hero__content {
  position: relative;
  z-index: 3;
  max-width: 880px;
}

.hero__eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.5em;
  color: var(--moon-silver);
  opacity: 0.7;
  margin-bottom: 2.2rem;
  padding-left: 0.5em;
}

.hero__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(3rem, 9.5vw, 7rem);
  line-height: 1.12;
  letter-spacing: 0.04em;
  color: var(--text-strong);
  text-shadow: 0 0 60px rgba(91, 140, 255, 0.25);
  margin-bottom: 2rem;
}

.hero__subtitle {
  font-size: clamp(0.98rem, 1.6vw, 1.18rem);
  font-weight: 300;
  line-height: 2.1;
  color: var(--text);
  max-width: 680px;
  margin: 0 auto 3rem;
}

.hero__actions {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  z-index: 3;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-faint);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
}

.hero__scroll-dot {
  width: 22px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 12px;
  position: relative;
}

.hero__scroll-dot::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--teal-glow);
  transform: translateX(-50%);
  box-shadow: 0 0 8px var(--teal-glow);
  animation: scroll-fall 2s ease-in-out infinite;
}

@keyframes scroll-fall {
  0% { opacity: 0; transform: translate(-50%, 0); }
  40% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, 16px); }
}

/* =========================================================
   按钮
   ========================================================= */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.96rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  padding: 14px 34px;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    background 0.4s var(--ease);
  overflow: hidden;
}

.btn--lg {
  padding: 18px 48px;
  font-size: 1.05rem;
}

.btn--primary {
  color: #0a0a14;
  background: linear-gradient(
    100deg,
    var(--nebula-blue),
    var(--soft-violet) 55%,
    var(--soft-pink)
  );
  background-size: 180% auto;
  box-shadow: 0 8px 30px rgba(91, 140, 255, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.1) inset;
  font-weight: 500;
}

.btn--primary:hover {
  transform: translateY(-3px);
  background-position: 100% center;
  box-shadow: 0 14px 44px rgba(179, 157, 255, 0.45),
    0 0 30px var(--glow-pink);
}

/* 悬停时掠过的微光 */
.btn--primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.55),
    transparent
  );
  transform: skewX(-20deg);
  transition: left 0.7s var(--ease);
}

.btn--primary:hover::after {
  left: 130%;
}

.btn--ghost {
  color: var(--text-strong);
  border: 1px solid var(--line);
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
}

.btn--ghost:hover {
  transform: translateY(-3px);
  border-color: rgba(95, 230, 207, 0.5);
  box-shadow: 0 0 26px var(--glow-teal);
}

/* =========================================================
   关于我们
   ========================================================= */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
  margin-top: 1rem;
}

.about__lead {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  line-height: 1.7;
  color: var(--moon-silver);
  font-weight: 300;
}

.about__text p {
  color: var(--text-dim);
  font-size: 1.04rem;
  margin-bottom: 1.4rem;
}

.about__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 5rem;
  padding-top: 3rem;
  border-top: 1px solid var(--line-soft);
}

.stat {
  flex: 1;
  min-width: 200px;
}

.stat__num {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  line-height: 1;
  background: linear-gradient(120deg, var(--teal-glow), var(--nebula-blue));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.8rem;
}

.stat__label {
  font-size: 0.92rem;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}

/* =========================================================
   卡片通用（玻璃质感）
   ========================================================= */
.card {
  position: relative;
  background: var(--bg-glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 38px 34px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease),
    background 0.5s var(--ease), box-shadow 0.5s var(--ease);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    140deg,
    rgba(91, 140, 255, 0.5),
    transparent 40%,
    transparent 60%,
    rgba(95, 230, 207, 0.4)
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}

.card:hover {
  transform: translateY(-8px);
  background: var(--bg-glass-strong);
  border-color: transparent;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5),
    0 0 40px rgba(91, 140, 255, 0.12);
}

.card:hover::before {
  opacity: 1;
}

.card__title {
  font-family: var(--font-serif);
  font-size: 1.32rem;
  font-weight: 500;
  color: var(--text-strong);
  margin-bottom: 0.9rem;
  letter-spacing: 0.03em;
}

.card__desc {
  font-size: 0.98rem;
  color: var(--text-dim);
  line-height: 1.9;
}

/* =========================================================
   服务内容
   ========================================================= */
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.service-card {
  display: flex;
  flex-direction: column;
}

.service-card--wide {
  grid-column: 1 / -1;
}

.service-card__index {
  position: absolute;
  top: 26px;
  right: 30px;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--text-faint);
  letter-spacing: 0.1em;
  opacity: 0.6;
}

.service-card__icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  margin-bottom: 1.6rem;
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
}

/* 用渐变圆点构成的抽象情绪图标 */
.service-card__icon::after {
  content: "";
  width: 24px;
  height: 24px;
  border-radius: 50%;
  filter: blur(0.5px);
}

.icon--visual::after {
  background: radial-gradient(circle at 35% 35%, #fff, var(--nebula-blue));
  box-shadow: 0 0 18px var(--glow-blue);
}
.icon--ai::after {
  background: radial-gradient(circle at 35% 35%, #fff, var(--soft-violet));
  box-shadow: 0 0 18px var(--glow-violet);
  border-radius: 40% 60% 55% 45%;
}
.icon--story::after {
  background: radial-gradient(circle at 35% 35%, #fff, var(--soft-pink));
  box-shadow: 0 0 18px var(--glow-pink);
}
.icon--interactive::after {
  background: radial-gradient(circle at 35% 35%, #fff, var(--teal-glow));
  box-shadow: 0 0 18px var(--glow-teal);
  border-radius: 50% 50% 50% 0;
}
.icon--ip::after {
  background: conic-gradient(
    from 0deg,
    var(--nebula-blue),
    var(--soft-violet),
    var(--soft-pink),
    var(--teal-glow),
    var(--nebula-blue)
  );
  box-shadow: 0 0 20px var(--glow-violet);
}

/* =========================================================
   作品宇宙
   ========================================================= */
.works__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.work-card {
  position: relative;
  min-height: 320px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  background: var(--bg-2);
  transition: transform 0.6s var(--ease), border-color 0.6s var(--ease),
    box-shadow 0.6s var(--ease);
}

.work-card__glow {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.9;
  transition: transform 0.9s var(--ease), opacity 0.6s var(--ease);
}

/* 每件作品有独立的情绪色场 */
.work-card--echo .work-card__glow {
  background:
    radial-gradient(70% 60% at 30% 30%, rgba(91, 140, 255, 0.5), transparent 70%),
    radial-gradient(60% 50% at 80% 80%, rgba(179, 157, 255, 0.4), transparent 70%);
}
.work-card--dream .work-card__glow {
  background:
    radial-gradient(70% 60% at 70% 30%, rgba(179, 157, 255, 0.5), transparent 70%),
    radial-gradient(60% 50% at 20% 80%, rgba(255, 158, 199, 0.38), transparent 70%);
}
.work-card--planet .work-card__glow {
  background:
    radial-gradient(70% 60% at 40% 35%, rgba(95, 230, 207, 0.45), transparent 70%),
    radial-gradient(60% 50% at 85% 85%, rgba(91, 140, 255, 0.35), transparent 70%);
}
.work-card--tide .work-card__glow {
  background:
    radial-gradient(70% 60% at 60% 30%, rgba(255, 158, 199, 0.42), transparent 70%),
    radial-gradient(70% 60% at 20% 90%, rgba(95, 230, 207, 0.4), transparent 70%);
}

.work-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, transparent 30%, rgba(6, 6, 12, 0.85) 100%);
}

.work-card__body {
  position: relative;
  z-index: 2;
  padding: 34px 34px 38px;
}

.work-card__tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--moon-silver);
  opacity: 0.7;
  margin-bottom: 0.9rem;
}

.work-card__title {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 500;
  color: var(--text-strong);
  letter-spacing: 0.06em;
  margin-bottom: 0.7rem;
}

.work-card__desc {
  font-size: 0.96rem;
  color: var(--text);
  max-width: 30ch;
  opacity: 0.78;
  transform: translateY(6px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.work-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.55);
}

.work-card:hover .work-card__glow {
  transform: scale(1.12) rotate(3deg);
  opacity: 1;
}

.work-card:hover .work-card__desc {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   创作流程
   ========================================================= */
.process__steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  margin-top: 1rem;
}

.process-step {
  position: relative;
  padding-top: 2rem;
}

.process-step__num {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  color: var(--teal-glow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(95, 230, 207, 0.35);
  background: rgba(95, 230, 207, 0.06);
  margin-bottom: 1.4rem;
  box-shadow: 0 0 18px rgba(95, 230, 207, 0.12);
}

/* 步骤之间的连接光线 */
.process-step__line {
  position: absolute;
  top: calc(2rem + 23px);
  left: calc(46px + 10px);
  right: -18px;
  height: 1px;
  background: linear-gradient(
    90deg,
    rgba(95, 230, 207, 0.5),
    rgba(91, 140, 255, 0.1)
  );
}

.process-step__title {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 500;
  color: var(--text-strong);
  margin-bottom: 0.7rem;
  letter-spacing: 0.04em;
}

.process-step__desc {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.85;
}

/* =========================================================
   联系我们
   ========================================================= */
.contact {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact__core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(720px, 90vw);
  height: min(720px, 90vw);
  transform: translate(-50%, -50%);
  background: radial-gradient(
    circle,
    rgba(179, 157, 255, 0.18) 0%,
    rgba(255, 158, 199, 0.1) 35%,
    transparent 65%
  );
  filter: blur(30px);
  border-radius: 50%;
  animation: core-pulse 10s ease-in-out infinite;
  pointer-events: none;
}

.contact__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(2.1rem, 5.4vw, 4rem);
  line-height: 1.4;
  color: var(--text-strong);
  letter-spacing: 0.03em;
  margin-bottom: 1.8rem;
}

.contact__text {
  max-width: 540px;
  color: var(--text-dim);
  font-size: 1.05rem;
  margin-bottom: 3rem;
}

.contact__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.4rem;
}

.contact__mail {
  font-size: 0.92rem;
  letter-spacing: 0.16em;
  color: var(--text-faint);
  transition: color 0.3s var(--ease);
}

.contact__mail:hover {
  color: var(--teal-glow);
}

/* =========================================================
   页脚
   ========================================================= */
.footer {
  border-top: 1px solid var(--line-soft);
  padding: 4rem 0 3rem;
  background: rgba(5, 5, 10, 0.6);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.6rem;
  text-align: center;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.footer__slogan {
  font-family: var(--font-serif);
  color: var(--text-dim);
  letter-spacing: 0.16em;
  font-size: 0.95rem;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 28px;
}

.footer__links a {
  font-size: 0.9rem;
  color: var(--text-dim);
  transition: color 0.3s var(--ease);
}

.footer__links a:hover {
  color: var(--moon-silver);
}

.footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.45rem 1rem;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}

.footer__copy {
  color: inherit;
}

.footer__filings {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.45rem 1rem;
}

.footer__filings a {
  display: inline-flex;
  align-items: center;
  color: inherit;
  opacity: 0.82;
  transition: color 0.3s var(--ease), opacity 0.3s var(--ease);
}

.footer__filings a:hover {
  color: var(--moon-silver);
  opacity: 1;
}

.footer__police {
  gap: 0.35rem;
}

.footer__police img {
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  object-fit: contain;
}

/* =========================================================
   滚动渐入动效
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
  will-change: opacity, transform;
}

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

/* 同组卡片轻微错落 */
.services__grid .reveal.is-visible,
.works__grid .reveal.is-visible,
.process__steps .reveal.is-visible {
  transition-delay: var(--delay, 0s);
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 980px) {
  .about__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .process__steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 22px;
  }
  .process-step__line {
    display: none;
  }
}

@media (max-width: 720px) {
  .only-mobile {
    display: block;
  }

  /* 移动端导航：滑出面板 */
  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    height: 100svh;
    width: min(78vw, 320px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 8px;
    padding: 40px 36px;
    background: rgba(8, 8, 16, 0.86);
    backdrop-filter: blur(24px) saturate(140%);
    -webkit-backdrop-filter: blur(24px) saturate(140%);
    border-left: 1px solid var(--line);
    transform: translateX(105%);
    transition: transform 0.5s var(--ease);
  }

  .nav.is-open .nav__links {
    transform: translateX(0);
  }

  .nav__link {
    font-size: 1.15rem;
    padding: 12px 4px;
  }

  .nav__cta {
    margin-left: 0;
    margin-top: 1rem;
  }

  .nav__toggle {
    display: flex;
    z-index: 101;
  }

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

  .hero__subtitle br {
    display: none;
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
    max-width: 320px;
    margin-inline: auto;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .about__stats {
    flex-direction: column;
    gap: 2rem;
  }

  .process__steps {
    grid-template-columns: 1fr;
  }

  .footer__meta,
  .footer__filings {
    flex-direction: column;
    gap: 0.35rem;
  }
}

/* 尊重「减少动态效果」偏好 */
@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;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}