/* ============================================================
   伤心人类的一滴泪 · 个人主页
   纯手写 CSS，无框架、无外部字体，手机优先
   ============================================================ */

/* ---------- 变量 ---------- */
:root {
  --bg: #08080f;
  --bg-2: #0d0d1a;
  --ink: #ecebf6;
  --ink-soft: #a9a7c0;
  --ink-dim: #6f6d88;

  --violet: #8b7bf7;
  --cyan: #7fd4f5;
  --pink: #ffb6d5;

  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --glass: rgba(255, 255, 255, 0.045);
  --glass-2: rgba(255, 255, 255, 0.075);

  --radius: 22px;
  --radius-sm: 14px;
  --maxw: 1080px;

  --shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.85);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Source Han Sans SC",
    "Noto Sans CJK SC", sans-serif;
  --font-serif: "Songti SC", "Source Han Serif SC", "Noto Serif CJK SC", "SimSun", serif;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1100px 700px at 12% -8%, rgba(139, 123, 247, 0.22), transparent 62%),
    radial-gradient(900px 600px at 92% 4%, rgba(127, 212, 245, 0.14), transparent 60%),
    radial-gradient(800px 700px at 50% 108%, rgba(255, 182, 213, 0.1), transparent 65%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 52%, var(--bg) 100%);
  background-attachment: fixed;
}

#stars {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.9;
}

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

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

h1,
h2,
h3 {
  margin: 0;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

p {
  margin: 0 0 1em;
}

p:last-child {
  margin-bottom: 0;
}

::selection {
  background: rgba(139, 123, 247, 0.4);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 通用组件 ---------- */
.btn {
  --btn-bg: transparent;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.85em 1.6em;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
    background 0.35s var(--ease), border-color 0.35s var(--ease);
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn:active {
  transform: translateY(0) scale(0.985);
}

.btn--primary {
  border-color: transparent;
  color: #0a0a12;
  font-weight: 600;
  background: linear-gradient(120deg, var(--cyan), var(--violet) 62%, var(--pink));
  box-shadow: 0 10px 30px -12px rgba(139, 123, 247, 0.9);
}

.btn--primary:hover {
  box-shadow: 0 16px 40px -12px rgba(139, 123, 247, 1);
}

.btn--ghost {
  background: var(--glass-2);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.btn--small {
  padding: 0.6em 1.15em;
  font-size: 0.85rem;
}

.card {
  position: relative;
  padding: clamp(1.4rem, 4vw, 2.2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.muted {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

/* ---------- 导航 ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.1rem clamp(1rem, 4vw, 2.5rem);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease),
    padding 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}

.nav.is-stuck {
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
  background: rgba(8, 8, 15, 0.72);
  border-bottom-color: var(--line);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  font-size: 0.95rem;
}

.nav__brand svg {
  width: 22px;
  height: 22px;
  filter: drop-shadow(0 0 10px rgba(127, 212, 245, 0.6));
}

.nav__links {
  display: flex;
  gap: 0.4rem;
  margin-left: auto;
}

.nav__links a {
  position: relative;
  padding: 0.45em 0.9em;
  border-radius: 999px;
  font-size: 0.92rem;
  color: var(--ink-soft);
  transition: color 0.3s var(--ease), background 0.3s var(--ease);
}

.nav__links a:hover,
.nav__links a.is-active {
  color: var(--ink);
  background: var(--glass-2);
}

.nav__toggle {
  display: none;
  width: 42px;
  height: 42px;
  margin-left: auto;
  padding: 11px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--glass-2);
  cursor: pointer;
  flex-direction: column;
  justify-content: space-between;
}

.nav__toggle span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), opacity 0.25s var(--ease);
}

.nav.is-open .nav__toggle span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.nav.is-open .nav__toggle span:nth-child(2) {
  opacity: 0;
}
.nav.is-open .nav__toggle span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7rem clamp(1.1rem, 5vw, 2rem) 5rem;
  overflow: hidden;
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: -8%;
  z-index: -2;
  background-size: cover;
  background-position: center;
  filter: saturate(115%) brightness(0.62);
  transform: scale(1.06);
  animation: heroFloat 26s ease-in-out infinite alternate;
}

@keyframes heroFloat {
  from {
    transform: scale(1.06) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.14) translate3d(0, -1.5%, 0);
  }
}

.hero__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(70% 55% at 50% 42%, rgba(8, 8, 15, 0.32), rgba(8, 8, 15, 0.9) 76%),
    linear-gradient(180deg, rgba(8, 8, 15, 0.86) 0%, rgba(8, 8, 15, 0.42) 34%, rgba(8, 8, 15, 0.93) 88%, var(--bg) 100%);
}

.hero__inner {
  width: 100%;
  max-width: 720px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 头像 */
.avatar {
  position: relative;
  width: clamp(112px, 26vw, 152px);
  aspect-ratio: 1;
  margin-bottom: 1.9rem;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 18px 50px -12px rgba(0, 0, 0, 0.9), inset 0 0 0 6px rgba(8, 8, 15, 0.5);
}

.avatar__ring {
  position: absolute;
  inset: -9px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--cyan), var(--violet), var(--pink), var(--cyan));
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 2px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 2px));
  animation: spin 9s linear infinite;
  opacity: 0.9;
}

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

.avatar__dot {
  position: absolute;
  right: 4px;
  bottom: 8px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: #4ade80;
  border: 3px solid #08080f;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
  animation: pulse 2.6s ease-out infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.55);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(74, 222, 128, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(74, 222, 128, 0);
  }
}

/* 标题 */
.hero__name {
  font-size: clamp(2.05rem, 8.4vw, 3.6rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.24;
  text-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
}

.hero__name em {
  font-style: normal;
  background: linear-gradient(100deg, var(--cyan), var(--violet) 48%, var(--pink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 26px rgba(139, 123, 247, 0.45));
}

.hero__sub {
  margin: 0.7rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(0.95rem, 3.4vw, 1.1rem);
  letter-spacing: 0.28em;
  text-indent: 0.28em;
}

.hero__motto {
  margin: 1.5rem 0 0;
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 4vw, 1.35rem);
  color: rgba(236, 235, 246, 0.92);
  letter-spacing: 0.16em;
}

.quote-mark {
  color: var(--violet);
  opacity: 0.75;
}

/* 标签 */
.chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  margin: 1.9rem 0 0;
  padding: 0;
  list-style: none;
}

.chips li {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.42em 0.95em;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-size: 0.85rem;
  color: var(--ink);
  letter-spacing: 0.05em;
}

.chips__k {
  color: var(--ink-dim);
  font-size: 0.78rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 2.2rem;
}

/* 滚动提示 */
.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 1.6rem;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  display: grid;
  place-items: center;
  opacity: 0.75;
  transition: opacity 0.3s var(--ease);
}

.scroll-hint:hover {
  opacity: 1;
}

.scroll-hint span {
  width: 3px;
  height: 8px;
  border-radius: 2px;
  background: var(--cyan);
  animation: scrollDot 1.9s var(--ease) infinite;
}

@keyframes scrollDot {
  0% {
    transform: translateY(-6px);
    opacity: 0;
  }
  35% {
    opacity: 1;
  }
  100% {
    transform: translateY(8px);
    opacity: 0;
  }
}

/* ---------- 数据 ---------- */
.stats {
  position: relative;
  max-width: var(--maxw);
  margin: -2.5rem auto 0;
  padding: 0 clamp(1rem, 4vw, 2rem);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
  box-shadow: var(--shadow);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  padding: 1.5rem 0.6rem;
  background: rgba(12, 12, 22, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: background 0.4s var(--ease);
}

.stat:hover {
  background: rgba(24, 22, 42, 0.9);
}

.stat__num {
  font-size: clamp(1.35rem, 5.2vw, 1.95rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(150deg, #fff, var(--cyan) 70%, var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat__label {
  font-size: 0.78rem;
  color: var(--ink-dim);
  letter-spacing: 0.18em;
}

.stats__note {
  margin: 0.9rem 0 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--ink-dim);
  letter-spacing: 0.04em;
}

/* ---------- 区块 ---------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(4.5rem, 11vw, 8rem) clamp(1rem, 4vw, 2rem) 0;
}

.section__head {
  margin-bottom: clamp(1.8rem, 5vw, 2.8rem);
  max-width: 42rem;
}

.section__idx {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.35em;
  color: var(--violet);
  opacity: 0.85;
}

.section__head h2 {
  font-size: clamp(1.55rem, 5.6vw, 2.15rem);
  letter-spacing: 0.06em;
}

.section__desc {
  margin: 0.7rem 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---------- 关于 ---------- */
.about {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1.1rem;
  align-items: start;
}

.about__text p {
  font-size: 1rem;
  color: rgba(236, 235, 246, 0.86);
  line-height: 1.95;
}

.about__text strong {
  color: var(--cyan);
  font-weight: 600;
}

.about__sign {
  margin-top: 1.4rem;
  padding-top: 1.2rem;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-serif);
  letter-spacing: 0.1em;
  color: var(--pink) !important;
}

.about__side h3 {
  margin-bottom: 1rem;
  font-size: 1rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.about__side dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.7rem 1rem;
  margin: 0;
  font-size: 0.92rem;
}

.about__side dt {
  color: var(--ink-dim);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.about__side dd {
  margin: 0;
  color: var(--ink);
}

/* ---------- 作品 ---------- */
.works {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 6vw, 3.4rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(139, 123, 247, 0.16), rgba(127, 212, 245, 0.06) 45%, rgba(255, 182, 213, 0.08));
  box-shadow: var(--shadow);
}

.works__glow {
  position: absolute;
  top: -45%;
  right: -18%;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(127, 212, 245, 0.28), transparent 68%);
  filter: blur(12px);
  pointer-events: none;
}

.works__body {
  position: relative;
  max-width: 34rem;
}

.works__count {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.9rem;
}

.works__count b {
  font-size: clamp(2.4rem, 9vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  background: linear-gradient(140deg, #fff, var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.works__count span {
  color: var(--ink-soft);
  font-size: 0.9rem;
  letter-spacing: 0.16em;
}

.works h3 {
  font-size: clamp(1.15rem, 4.2vw, 1.45rem);
  letter-spacing: 0.05em;
}

.works p {
  margin: 0.8rem 0 1.6rem;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.works__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.works__tip {
  font-size: 0.8rem;
  color: var(--ink-dim);
  letter-spacing: 0.04em;
}

/* ---------- 嘟嘟 · 纪念 ---------- */
.hero__note {
  margin: 1.1rem 0 0;
  max-width: 26em;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.9;
  letter-spacing: 0.02em;
}

.memorial {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 7vw, 3.6rem) clamp(1.4rem, 5vw, 3rem);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 50% -20%, rgba(127, 212, 245, 0.14), transparent 55%),
    linear-gradient(170deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.012));
  box-shadow: var(--shadow);
  text-align: center;
}

.memorial__glow {
  position: absolute;
  top: -60%;
  left: 50%;
  width: 620px;
  height: 620px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(127, 212, 245, 0.16), transparent 62%);
  filter: blur(20px);
  pointer-events: none;
}

.memorial__body {
  position: relative;
  max-width: 40rem;
  margin: 0 auto;
}

.memorial__star {
  display: block;
  margin-bottom: 0.6rem;
  font-size: 1.1rem;
  color: var(--cyan);
  opacity: 0.85;
  animation: twinkle 4s ease-in-out infinite;
}

@keyframes twinkle {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.92);
  }
  50% {
    opacity: 0.95;
    transform: scale(1.08);
  }
}

.memorial__quote {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 6vw, 2.1rem);
  font-weight: 500;
  letter-spacing: 0.24em;
  text-indent: 0.24em;
  color: #fff;
  text-shadow: 0 0 40px rgba(127, 212, 245, 0.35);
}

.memorial__date {
  margin: 0.8rem 0 2rem;
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-indent: 0.22em;
  color: var(--ink-dim);
  font-variant-numeric: tabular-nums;
}

.memorial__body p {
  color: rgba(236, 235, 246, 0.85);
  font-size: 0.97rem;
  line-height: 2.05;
  letter-spacing: 0.03em;
  text-align: left;
  margin-bottom: 1.1em;
}

.memorial__body p strong {
  color: var(--cyan);
  font-weight: 600;
}

.memorial__sign {
  margin-top: 2rem !important;
  text-align: right !important;
  font-family: var(--font-serif);
  letter-spacing: 0.2em;
  color: var(--pink) !important;
}

.memorial__meta {
  margin-top: 1.4rem !important;
  padding-top: 1.2rem;
  border-top: 1px dashed var(--line-strong);
  text-align: center !important;
  font-size: 0.82rem !important;
  color: var(--ink-dim) !important;
  letter-spacing: 0.06em;
}

.memorial__actions {
  margin-top: 1.8rem;
  display: flex;
  justify-content: center;
}

@media (max-width: 560px) {
  .memorial__body p {
    text-align: justify;
    font-size: 0.93rem;
    line-height: 1.95;
  }
  .memorial__sign {
    text-align: center !important;
  }
}

/* ---------- 联系 ---------- */
.contact {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1.1rem;
  align-items: stretch;
}

.contact__qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.contact__qr img {
  width: 100%;
  max-width: 210px;
  aspect-ratio: 1;
  object-fit: contain;
  padding: 10px;
  border-radius: var(--radius-sm);
  background: #fff;
  box-shadow: 0 12px 34px -14px rgba(0, 0, 0, 0.9);
}

.contact__qr p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
}

.contact__info h3 {
  font-size: 1rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  margin-bottom: 0.9rem;
}

.copy-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.copy-row code {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.65em 1em;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.28);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.05rem;
  letter-spacing: 0.18em;
  color: var(--cyan);
  text-align: center;
}

.contact__info hr {
  margin: 1.5rem 0 1.2rem;
  border: 0;
  border-top: 1px solid var(--line);
}

/* ---------- 页脚 ---------- */
.footer {
  max-width: var(--maxw);
  margin: clamp(4rem, 10vw, 7rem) auto 0;
  padding: 2rem clamp(1rem, 4vw, 2rem) 3rem;
  border-top: 1px solid var(--line);
  text-align: center;
}

.footer p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
}

.footer__sub {
  margin-top: 0.5rem !important;
  font-size: 0.76rem !important;
  color: var(--ink-dim) !important;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  z-index: 90;
  transform: translate(-50%, 140%);
  padding: 0.75em 1.4em;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(20, 18, 34, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  font-size: 0.88rem;
  color: var(--ink);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.45s var(--ease), opacity 0.45s var(--ease);
}

.toast.is-show {
  transform: translate(-50%, 0);
  opacity: 1;
}

/* ---------- 入场动画 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  will-change: opacity, transform;
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .about,
  .contact {
    grid-template-columns: 1fr;
  }

  .contact__qr img {
    max-width: 180px;
  }

  .contact__qr {
    padding-bottom: 0.4rem;
  }
}

@media (max-width: 720px) {
  .nav__toggle {
    display: flex;
  }

  .nav__links {
    position: fixed;
    top: 64px;
    left: 1rem;
    right: 1rem;
    flex-direction: column;
    gap: 0.25rem;
    margin: 0;
    padding: 0.6rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(10, 10, 20, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
  }

  .nav.is-open .nav__links {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav__links a {
    padding: 0.75em 1em;
    font-size: 1rem;
  }

  .nav .btn--ghost {
    display: none;
  }

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

  .hero {
    padding-top: 6rem;
  }

  .scroll-hint {
    display: none;
  }
}

@media (max-width: 380px) {
  .chips li {
    font-size: 0.78rem;
  }

  .hero__actions .btn {
    width: 100%;
  }
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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