/* ============================================
   檐下绵汐 - 全局样式
   配色：淡蓝 / 淡粉 / 白 · 简约科技感
   ============================================ */

/* ---------- 设计令牌 ---------- */
:root {
  --color-sky: #A8D8F0;
  --color-sky-soft: #D6ECF8;
  --color-sky-deep: #6FB4DC;
  --color-pink: #FBD4E0;
  --color-pink-soft: #FDE9EF;
  --color-pink-deep: #F4A8C5;
  --color-white: #FFFFFF;
  --color-ink: #3B5B7E;
  --color-ink-soft: #6B7F99;
  --color-mint: #C8E8D8;
  --color-bg: #FBFDFE;
  --color-gree:#D3D3D3;
  --color-line: rgba(59, 91, 126, 0.12);

  --font-display: 'Noto Serif SC', 'Songti SC', 'STSong', serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'HarmonyOS Sans', sans-serif;

  --nav-h: 68px;
  --max-w: 1200px;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-soft: 0 8px 30px rgba(111, 180, 220, 0.18);
  --shadow-glow: 0 12px 40px rgba(168, 216, 240, 0.35);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---------- 全局背景纹理 ---------- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 12% 18%, rgba(168, 216, 240, 0.35), transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(251, 212, 224, 0.32), transparent 40%),
    radial-gradient(circle at 50% 95%, rgba(200, 232, 216, 0.28), transparent 50%),
    linear-gradient(180deg, #FBFDFE 0%, #F4FAFE 100%);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(111, 180, 220, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111, 180, 220, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

/* ---------- 容器 ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 窄条幅 ---------- */
.banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1010;
  background: var(--bg-color, #6FB4DC);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.banner-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: white;
  font-size: 0.88rem;
  font-weight: 500;
  transition: opacity 0.3s var(--ease);
}

.banner-content:hover {
  opacity: 0.85;
}

.banner-badge {
  padding: 2px 10px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.25);
  font-size: 0.75rem;
  font-weight: 600;
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease),
    backdrop-filter 0.4s var(--ease), top 0.3s var(--ease);
}

.navbar.has-banner {
  top: 44px;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 0 rgba(59, 91, 126, 0.08), 0 6px 24px rgba(168, 216, 240, 0.18);
}

.nav-inner {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: 2px;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: var(--shadow-glow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  position: relative;
  padding: 8px 18px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-ink);
  border-radius: 999px;
  transition: all 0.3s var(--ease);
}

.nav-links a:hover {
  background: rgba(168, 216, 240, 0.25);
  color: var(--color-sky-deep);
}

.nav-links a.active {
  background: var(--color-sky-deep);
  color: white;
  box-shadow: 0 4px 14px rgba(111, 180, 220, 0.4);
}

/* 汉堡菜单按钮 */
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   通用按钮
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.35s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-pink) 100%);
  color: white;
  box-shadow: 0 6px 20px rgba(168, 216, 240, 0.5);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(244, 168, 197, 0.45);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.7);
  color: var(--color-ink);
  border: 1.5px solid var(--color-line);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  border-color: var(--color-sky);
  background: white;
  transform: translateY(-2px);
}

/* ============================================
   页面通用区块
   ============================================ */
.page-main {
  padding-top: var(--nav-h);
  min-height: 100vh;
}

.page-main.has-banner {
  padding-top: calc(var(--nav-h) + 44px);
}

.section {
  padding: 90px 0;
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  padding: 5px 16px;
  border-radius: 999px;
  background: rgba(168, 216, 240, 0.2);
  color: var(--color-sky-deep);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 18px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: 1px;
}

.section-subtitle {
  margin-top: 14px;
  color: var(--color-ink-soft);
  font-size: 1.02rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   打字机效果
   ============================================ */
.typewriter {
  display: inline-block;
  overflow: hidden;
  white-space: nowrap;
  border-right: 2px solid var(--color-sky-deep);
  animation: typing 3.5s steps(20, end) both, blink-caret 0.75s step-end infinite;
}

.typewriter[data-delay] {
  animation-delay: var(--delay-time, 1s);
}

@keyframes typing {
  from { max-width: 0; }
  to { max-width: 100%; }
}

@keyframes blink-caret {
  from, to { border-color: transparent; }
  50% { border-color: var(--color-sky-deep); }
}

/* ============================================
   首页 Hero
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0 24px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(251, 253, 254, 0.45) 0%,
    rgba(214, 236, 248, 0.35) 40%,
    rgba(253, 233, 239, 0.45) 75%,
    rgba(251, 253, 254, 0.9) 100%);
}

/* 浮动光斑 */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(50px);
  opacity: 0.55;
  z-index: -1;
  animation: float 12s ease-in-out infinite;
}

.orb-1 {
  width: 320px;
  height: 320px;
  background: var(--color-sky);
  top: 18%;
  left: 8%;
}

.orb-2 {
  width: 260px;
  height: 260px;
  background: var(--color-pink);
  top: 55%;
  right: 10%;
  animation-delay: -4s;
}

.orb-3 {
  width: 180px;
  height: 180px;
  background: var(--color-mint);
  bottom: 18%;
  left: 40%;
  animation-delay: -8s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.08); }
  66% { transform: translate(-20px, 30px) scale(0.95); }
}

.hero-content {
  text-align: center;
  max-width: 860px;
  animation: heroIn 1.2s var(--ease) both;
}

@keyframes heroIn {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-sky-deep);
  letter-spacing: 3px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-soft);
}

.hero-eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-pink-deep);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 8vw, 5.4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 4px;
  color: var(--color-ink);
  margin-bottom: 26px;
}

.hero-title .accent {
  background: linear-gradient(120deg, var(--color-sky-deep) 0%, var(--color-pink-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  border-right-color: var(--color-pink-deep);
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-ink-soft);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* 向下指示 */
.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-ink-soft);
  font-size: 0.78rem;
  letter-spacing: 2px;
  animation: bounceDown 2.4s infinite;
}

.scroll-hint .mouse {
  width: 26px;
  height: 42px;
  border: 2px solid var(--color-ink-soft);
  border-radius: 14px;
  position: relative;
}

.scroll-hint .mouse::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  border-radius: 2px;
  background: var(--color-ink-soft);
  animation: scrollWheel 1.6s infinite;
}

@keyframes scrollWheel {
  0% { opacity: 1; top: 8px; }
  100% { opacity: 0; top: 22px; }
}

@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================
   作品展示卡片
   ============================================ */
.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.work-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow-soft);
  transition: all 0.5s var(--ease);
  cursor: pointer;
}

.work-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px rgba(168, 216, 240, 0.4);
  border-color: var(--color-sky);
}

.work-cover {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  position: relative;
}

.work-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.work-card:hover .work-cover img {
  transform: scale(1.08);
}

.work-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(59, 91, 126, 0.4) 100%);
}

.work-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-sky-deep);
  z-index: 2;
}

.work-body {
  padding: 22px 22px 26px;
}

.work-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.work-desc {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  line-height: 1.7;
  margin-bottom: 16px;
}

.work-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-sky-deep);
  transition: gap 0.3s var(--ease);
}

.work-card:hover .work-link {
  gap: 12px;
}

/* ============================================
   前往作品页 - 平台卡片
   ============================================ */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.platform-card {
  position: relative;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius);
  padding: 30px 24px;
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: all 0.5s var(--ease);
  overflow: hidden;
}

.platform-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--platform-color, var(--color-sky));
  opacity: 0.85;
}

.platform-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 44px rgba(168, 216, 240, 0.4);
}

.platform-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  margin: 0 auto 16px;
  display: grid;
  place-items: center;
  background: var(--platform-bg, rgba(168, 216, 240, 0.2));
  color: var(--platform-color, var(--color-sky-deep));
  transition: transform 0.4s var(--ease);
}

.platform-card:hover .platform-icon {
  transform: rotate(-8deg) scale(1.08);
}

.platform-icon svg {
  width: 30px;
  height: 30px;
}

.platform-icon img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  object-fit: cover;
}

.platform-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 4px;
}

.platform-handle {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin-bottom: 18px;
}

.qr-wrap {
  display: inline-block;
  padding: 10px;
  background: white;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 14px rgba(59, 91, 126, 0.1);
  margin-bottom: 18px;
  transition: transform 0.4s var(--ease);
}

.platform-card:hover .qr-wrap {
  transform: scale(1.06);
}

.qr-wrap img {
  width: 110px;
  height: 110px;
  border-radius: 6px;
}

.platform-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: 999px;
  background: var(--platform-color, var(--color-sky-deep));
  color: white;
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.3s var(--ease);
}

.platform-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--platform-bg, rgba(168, 216, 240, 0.4));
  filter: brightness(1.08);
}

/* ============================================
   关于我页
   ============================================ */
.about-hero {
  padding: 80px 0 40px;
  text-align: center;
}

.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-pink) 100%);
  display: grid;
  place-items: center;
  color: white;
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  box-shadow: var(--shadow-glow);
  position: relative;
}

.avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.avatar::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px dashed rgba(168, 216, 240, 0.5);
  animation: spin 20s linear infinite;
}

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

.about-name {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.about-tagline {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.about-bio {
  max-width: 680px;
  margin: 0 auto;
  color: var(--color-ink-soft);
  line-height: 1.9;
  font-size: 1rem;
}

/* 信息小卡片 */
.about-info-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin: 28px auto;
  max-width: 680px;
}

.info-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: all 0.3s var(--ease);
}

.info-card:hover {
  border-color: var(--color-sky);
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.info-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(168, 216, 240, 0.25) 0%, rgba(251, 212, 224, 0.25) 100%);
  color: var(--color-sky-deep);
  flex-shrink: 0;
}

.info-icon svg {
  width: 18px;
  height: 18px;
}

.info-text {
  display: flex;
  flex-direction: column;
  line-height: 1.4;
}

.info-label {
  font-size: 0.72rem;
  color: var(--color-ink-soft);
  font-weight: 500;
}

.info-value {
  font-size: 0.95rem;
  color: var(--color-ink);
  font-weight: 600;
}

/* 引用卡片 */
.quote-card {
  position: relative;
  max-width: 560px;
  margin: 36px auto 0;
  padding: 28px 32px;
  background: linear-gradient(135deg, rgba(168, 216, 240, 0.12) 0%, rgba(251, 212, 224, 0.12) 100%);
  border: 1px solid rgba(168, 216, 240, 0.3);
  border-radius: var(--radius);
  text-align: center;
}

.quote-mark {
  width: 28px;
  height: 28px;
  color: var(--color-sky-deep);
  opacity: 0.4;
  margin: 0 auto 10px;
  display: block;
}

.quote-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.8;
  letter-spacing: 1px;
}

/* 时间线 */
.timeline {
  position: relative;
  max-width: 820px;
  margin: 0 auto;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-sky) 0%, var(--color-pink) 100%);
}

.timeline-item {
  position: relative;
  padding-bottom: 36px;
}

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

.timeline-dot {
  position: absolute;
  left: -32px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  border: 3px solid var(--color-sky-deep);
  box-shadow: 0 0 0 4px rgba(168, 216, 240, 0.25);
}

.timeline-date {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  background: rgba(168, 216, 240, 0.2);
  color: var(--color-sky-deep);
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.timeline-desc {
  color: var(--color-ink-soft);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* 技能标签 */
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.skill-tag {
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-line);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-ink);
  transition: all 0.3s var(--ease);
}

.skill-tag:hover {
  background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-pink) 100%);
  color: white;
  border-color: transparent;
  transform: translateY(-3px);
}

/* 友情链接 */
.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.friend-link {
  padding: 10px 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-line);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-ink);
  transition: all 0.3s var(--ease);
}

.friend-link:hover {
  background: var(--color-sky-deep);
  color: white;
  border-color: transparent;
  transform: translateY(-3px);
}

/* ============================================
   联系我页
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
  max-width: 880px;
  margin: 0 auto;
}

.contact-card {
  position: relative;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: all 0.5s var(--ease);
  overflow: hidden;
}

.contact-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 44px rgba(168, 216, 240, 0.35);
}

.contact-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  margin: 0 auto 20px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-pink) 100%);
  color: white;
  box-shadow: var(--shadow-glow);
}

.contact-icon svg {
  width: 32px;
  height: 32px;
}

.contact-label {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.contact-value {
  color: var(--color-ink-soft);
  font-size: 1rem;
  margin-bottom: 22px;
  word-break: break-all;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: 999px;
  background: rgba(168, 216, 240, 0.2);
  color: var(--color-sky-deep);
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.3s var(--ease);
}

.copy-btn:hover {
  background: var(--color-sky-deep);
  color: white;
}

.copy-btn.copied {
  background: var(--color-mint);
  color: #2d8a5f;
}

/* ============================================
   最新活动页
   ============================================ */
.event-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-soft);
  transition: all 0.5s var(--ease);
  cursor: pointer;
}

.event-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 44px rgba(168, 216, 240, 0.4);
  border-color: var(--color-sky);
}

.event-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.event-badge {
  padding: 6px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-pink) 100%);
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.event-nobadge {
  padding: 6px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-gree) 100%);
  color: grey;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

.event-date {
  font-size: 0.88rem;
  color: var(--color-ink-soft);
}

.event-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.event-desc {
  font-size: 0.95rem;
  color: var(--color-ink-soft);
  line-height: 1.8;
  margin-bottom: 16px;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

.event-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.event-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

/* ============================================
   下载中心页
   ============================================ */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.download-card {
  position: relative;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-soft);
  transition: all 0.5s var(--ease);
  display: flex;
  flex-direction: column;
}

.download-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 44px rgba(168, 216, 240, 0.4);
  border-color: var(--color-sky);
}

.download-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  margin-bottom: 18px;
  display: grid;
  place-items: center;
  color: white;
  box-shadow: var(--shadow-glow);
}

.download-icon-img    { background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-sky-deep) 100%); }
.download-icon-preset { background: linear-gradient(135deg, var(--color-pink) 0%, var(--color-pink-deep) 100%); }
.download-icon-book   { background: linear-gradient(135deg, var(--color-mint) 0%, var(--color-sky) 100%); }
.download-icon-font   { background: linear-gradient(135deg, var(--color-sky-deep) 0%, var(--color-pink-deep) 100%); }
.download-icon-asset  { background: linear-gradient(135deg, var(--color-pink-soft) 0%, var(--color-sky) 100%); }
.download-icon-audio  { background: linear-gradient(135deg, var(--color-sky-soft) 0%, var(--color-pink) 100%); }

.download-icon svg {
  width: 26px;
  height: 26px;
}

.download-body {
  flex: 1;
}

.download-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.download-desc {
  font-size: 0.88rem;
  color: var(--color-ink-soft);
  line-height: 1.7;
  margin-bottom: 14px;
}

.download-meta {
  display: flex;
  gap: 10px;
  margin-bottom: 18px;
}

.download-format {
  padding: 3px 10px;
  border-radius: 6px;
  background: rgba(168, 216, 240, 0.2);
  color: var(--color-sky-deep);
  font-size: 0.75rem;
  font-weight: 600;
}

.download-size {
  padding: 3px 10px;
  border-radius: 6px;
  background: rgba(251, 212, 224, 0.3);
  color: var(--color-pink-deep);
  font-size: 0.75rem;
  font-weight: 600;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: 999px;
  background: var(--color-sky-deep);
  color: white;
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.3s var(--ease);
  align-self: flex-start;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(111, 180, 220, 0.4);
  filter: brightness(1.08);
}

.download-date {
  padding: 3px 10px;
  border-radius: 6px;
  background: rgba(200, 232, 216, 0.3);
  color: #5a9e7a;
  font-size: 0.75rem;
  font-weight: 600;
}

/* 查看更多卡片 */
.download-more {
  align-items: center;
  justify-content: center;
  text-align: center;
  border-style: dashed;
  border-color: var(--color-sky);
  background: rgba(168, 216, 240, 0.08);
}

.download-more:hover {
  border-style: solid;
  background: rgba(168, 216, 240, 0.15);
}

.download-more-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.download-more-icon {
  width: 48px;
  height: 48px;
  color: var(--color-sky-deep);
  margin-bottom: 14px;
}

.download-more-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.download-more-desc {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  line-height: 1.7;
  margin-bottom: 18px;
}

/* ============================================
   页脚
   ============================================ */
.footer {
  padding: 50px 0 36px;
  text-align: center;
  border-top: 1px solid var(--color-line);
  margin-top: 60px;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(10px);
}

.footer.has-banner {
  margin-top: calc(60px + 44px);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.footer-text {
  color: var(--color-ink-soft);
  font-size: 0.85rem;
  line-height: 1.8;
}

.footer-social {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin: 18px 0;
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--color-line);
  color: var(--color-ink-soft);
  transition: all 0.3s var(--ease);
}

.footer-social a:hover {
  background: linear-gradient(135deg, var(--color-sky) 0%, var(--color-pink) 100%);
  color: white;
  border-color: transparent;
  transform: translateY(-3px);
}

.footer-social svg {
  width: 18px;
  height: 18px;
}

/* ============================================
   弹窗组件
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(59, 91, 126, 0.5);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: modalFadeIn 0.3s var(--ease);
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background: white;
  border-radius: var(--radius);
  padding: 36px;
  max-width: 480px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(59, 91, 126, 0.3);
  animation: modalSlideIn 0.4s var(--ease);
  position: relative;
}

@keyframes modalSlideIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(59, 91, 126, 0.08);
  color: var(--color-ink-soft);
  display: grid;
  place-items: center;
  transition: all 0.3s var(--ease);
}

.modal-close:hover {
  background: rgba(59, 91, 126, 0.15);
  color: var(--color-ink);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 16px;
}

.modal-desc {
  font-size: 0.95rem;
  color: var(--color-ink-soft);
  line-height: 1.8;
  margin-bottom: 24px;
}

/* ============================================
   Toast 提示
   ============================================ */
.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-ink);
  color: white;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: all 0.4s var(--ease);
  z-index: 2000;
  box-shadow: 0 10px 30px rgba(59, 91, 126, 0.3);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============================================
   滚动渐入动画
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

/* ============================================
   响应式
   ============================================ */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 20px;
    gap: 6px;
    transform: translateY(-150%);
    transition: transform 0.4s var(--ease);
    box-shadow: 0 10px 30px rgba(168, 216, 240, 0.2);
  }

  .navbar.has-banner + .nav-links {
    top: calc(var(--nav-h) + 44px);
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 14px;
  }

  .section {
    padding: 60px 0;
  }

  .section-head {
    margin-bottom: 36px;
  }

  .hero-title {
    letter-spacing: 2px;
  }

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

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

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

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

  .timeline {
    padding-left: 28px;
  }

  .timeline-dot {
    left: -28px;
  }

  .event-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 18px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .brand {
    font-size: 1.2rem;
  }
}