/* =========================================================
   世界人民大团结万岁 · sjrmdtjws.com
   主题：中国红 × 金  ·  全站无外部资源，自包含
   ========================================================= */

:root {
  --red: #c8102e;
  --red-dark: #8f0d21;
  --red-deep: #5c0a16;
  --gold: #ffd700;
  --gold-light: #ffe9a8;
  --cream: #fdf6e3;
  --ink: #3a1f24;
  --shadow: 0 12px 32px rgba(60, 5, 15, 0.35);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ---------- 顶部导航 ---------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(92, 10, 22, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid rgba(255, 215, 0, 0.35);
}
.topbar-inner {
  max-width: 1080px; margin: 0 auto; padding: 10px 18px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.brand { color: var(--gold); font-weight: 700; letter-spacing: 1px; font-size: 15px; }
.topnav { display: flex; gap: 18px; flex-wrap: wrap; }
.topnav a {
  color: #ffd9c8; text-decoration: none; font-size: 14px;
  padding: 4px 2px; border-bottom: 2px solid transparent; transition: all .25s;
}
.topnav a:hover { color: var(--gold); border-bottom-color: var(--gold); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% -10%, rgba(255, 215, 0, 0.28), transparent 55%),
    linear-gradient(165deg, #a80f24 0%, var(--red) 45%, var(--red-dark) 100%);
  padding: 110px 18px 60px;
  overflow: hidden;
}

/* 星星闪烁背景 */
.hero-stars {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 22%, #ffe9a8 50%, transparent 55%),
    radial-gradient(1.5px 1.5px at 78% 12%, #ffe9a8 50%, transparent 55%),
    radial-gradient(2px 2px at 88% 38%, #ffd700 50%, transparent 55%),
    radial-gradient(1.5px 1.5px at 22% 68%, #ffd700 50%, transparent 55%),
    radial-gradient(2px 2px at 62% 82%, #ffe9a8 50%, transparent 55%),
    radial-gradient(1.5px 1.5px at 42% 8%, #ffd700 50%, transparent 55%),
    radial-gradient(2px 2px at 8% 48%, #ffe9a8 50%, transparent 55%),
    radial-gradient(1.5px 1.5px at 94% 66%, #ffd700 50%, transparent 55%);
  animation: twinkle 3.2s ease-in-out infinite alternate;
}
@keyframes twinkle { from { opacity: .45; } to { opacity: 1; } }

.cloud { position: absolute; width: 130px; animation: drift 26s linear infinite; }
.cloud-1 { top: 16%; left: -140px; }
.cloud-2 { top: 30%; left: -200px; animation-delay: -13s; }
@keyframes drift { from { transform: translateX(0); } to { transform: translateX(calc(100vw + 360px)); } }

.hero-inner { position: relative; z-index: 2; max-width: 860px; }

.badge {
  display: inline-block; margin-bottom: 22px;
  padding: 7px 20px; border-radius: 999px;
  border: 1px solid rgba(255, 215, 0, 0.7); color: var(--gold-light);
  font-size: 14px; letter-spacing: 3px; background: rgba(255, 215, 0, 0.08);
}

.slogan {
  font-family: "KaiTi", "STKaiti", "SimSun", "Songti SC", serif;
  font-size: clamp(40px, 7.5vw, 88px);
  font-weight: 700; color: #fff; letter-spacing: 6px;
  text-shadow: 0 4px 24px rgba(60, 0, 10, 0.45);
  line-height: 1.25;
}
.slogan .gold {
  background: linear-gradient(180deg, #fff3b0 0%, var(--gold) 55%, #d99a00 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 3px 10px rgba(255, 200, 0, 0.45));
}

.sub { margin: 18px 0 34px; color: #ffd9c8; font-size: clamp(14px, 2.4vw, 17px); letter-spacing: 1.5px; }

/* ---------- 计数器 ---------- */
.counter-box {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 215, 0, 0.35);
  border-radius: 22px; padding: 26px 20px 22px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
  max-width: 520px; margin: 0 auto;
}
.counter-label { color: var(--gold-light); font-size: 14px; letter-spacing: 4px; }
.counter {
  font-family: "Georgia", "Times New Roman", serif;
  font-size: clamp(52px, 10vw, 84px); font-weight: 700;
  color: var(--gold);
  text-shadow: 0 0 26px rgba(255, 215, 0, 0.5), 0 4px 0 rgba(120, 10, 20, 0.6);
  line-height: 1.25; letter-spacing: 2px;
  font-variant-numeric: tabular-nums;
}
.counter-unit { color: #ffd9c8; font-size: 13px; letter-spacing: 2px; margin-bottom: 18px; }

.btn-plus {
  position: relative; overflow: hidden; cursor: pointer;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 34px; border: none; border-radius: 999px;
  font-size: 18px; font-weight: 700; color: #7a0d1c;
  background: linear-gradient(180deg, #fff3b0, var(--gold) 60%, #e8b400);
  box-shadow: 0 6px 0 #a97a00, 0 10px 22px rgba(0, 0, 0, 0.3);
  transition: transform .12s, box-shadow .12s, filter .2s;
  user-select: none; -webkit-tap-highlight-color: transparent;
}
.btn-plus:hover { filter: brightness(1.06); }
.btn-plus:active { transform: translateY(4px); box-shadow: 0 2px 0 #a97a00, 0 6px 14px rgba(0,0,0,.3); }
.btn-plus:focus-visible { outline: 3px solid #fff; outline-offset: 3px; }
.btn-plus:disabled { filter: grayscale(.35) brightness(.92); cursor: not-allowed; }
.btn-star { color: #c8102e; font-size: 22px; animation: starSpin 4s linear infinite; }
@keyframes starSpin { to { transform: rotate(360deg); } }

.my-note { margin-top: 14px; color: #ffd9c8; font-size: 13px; letter-spacing: 1px; }
.my-note b { color: var(--gold); font-size: 16px; }
.status-line { min-height: 22px; margin-top: 8px; font-size: 13px; color: var(--gold-light); }

/* 点击粒子 */
.particle {
  position: fixed; z-index: 999; pointer-events: none;
  font-size: 18px; will-change: transform, opacity;
  animation: flyUp 0.9s ease-out forwards;
}
@keyframes flyUp {
  0%   { transform: translate(0, 0) scale(1) rotate(0deg); opacity: 1; }
  100% { transform: translate(var(--dx), var(--dy)) scale(0.4) rotate(120deg); opacity: 0; }
}

/* 数字跳动 */
.counter.bump { animation: bump .35s ease; }
@keyframes bump {
  0% { transform: scale(1); }
  40% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

/* ---------- Hero 按钮组 / 装饰 ---------- */
.hero-actions { margin-top: 26px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-ghost {
  cursor: pointer; padding: 9px 22px; border-radius: 999px;
  border: 1px solid rgba(255, 215, 0, 0.6); color: var(--gold-light);
  background: rgba(255, 215, 0, 0.06); font-size: 14px; letter-spacing: 1px;
  transition: all .2s;
}
.btn-ghost:hover { background: rgba(255, 215, 0, 0.16); color: #fff; }

.dove {
  position: absolute; right: 6%; top: 16%; width: 150px; z-index: 1;
  animation: floatY 5s ease-in-out infinite;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.25));
}
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

.tiananmen {
  position: absolute; bottom: -6px; left: 50%; transform: translateX(-50%);
  width: min(520px, 92vw); z-index: 1; opacity: 0.9;
}

.hero-wave {
  position: absolute; bottom: -2px; left: 0; right: 0; height: 60px; z-index: 2;
  background: var(--cream);
  clip-path: polygon(0 55%, 12% 40%, 25% 60%, 38% 38%, 50% 58%, 63% 36%, 76% 56%, 88% 40%, 100% 55%, 100% 100%, 0 100%);
}

/* ---------- 通用区块 ---------- */
.section { padding: 84px 18px; }
.section-inner { max-width: 1080px; margin: 0 auto; }
.section-title {
  text-align: center; font-size: clamp(24px, 4vw, 34px);
  font-family: "KaiTi", "STKaiti", serif; letter-spacing: 3px;
  color: var(--red-dark); margin-bottom: 40px;
}
.star-deco { color: var(--gold); filter: drop-shadow(0 0 6px rgba(216, 154, 0, 0.6)); }

/* ---------- 团结宣言 ---------- */
.declaration { background: var(--cream); }
.declaration-body { max-width: 780px; margin: 0 auto; font-size: 16.5px; }
.declaration-body p { margin-bottom: 18px; text-indent: 2em; }
.declaration-body b { color: var(--red); }
.quote {
  max-width: 780px; margin: 34px auto 0; padding: 26px 30px;
  border-left: 5px solid var(--gold); border-radius: 0 14px 14px 0;
  background: linear-gradient(90deg, rgba(200, 16, 46, 0.08), transparent);
  font-family: "KaiTi", "STKaiti", serif; font-size: 19px; color: var(--red-dark);
}
.quote-src { display: block; margin-top: 10px; font-size: 13px; color: #9c6b22; text-align: right; }

/* ---------- 中国贡献 ---------- */
.achievements {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(200, 16, 46, 0.10), transparent 60%),
    #fff8ec;
}
.cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 22px;
}
.card {
  background: #fff; border: 1px solid #f0d9b8; border-radius: 16px;
  padding: 26px 22px; text-align: center;
  box-shadow: 0 6px 18px rgba(160, 90, 20, 0.08);
  transition: transform .25s, box-shadow .25s;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 14px 28px rgba(160, 90, 20, 0.16); }
.card-icon { font-size: 40px; margin-bottom: 12px; }
.card h3 { color: var(--red); font-size: 18px; margin-bottom: 10px; letter-spacing: 1px; }
.card p { font-size: 14px; color: #6b4a35; }

/* ---------- 寄语墙 ---------- */
.guestbook { background: var(--cream); }
.guestbook-tip { text-align: center; color: #9c6b22; font-size: 14px; margin-bottom: 26px; }
.guest-form {
  display: flex; gap: 12px; flex-wrap: wrap; justify-content: center;
  max-width: 720px; margin: 0 auto 34px;
}
.guest-form input {
  flex: 1 1 200px; padding: 12px 16px; border-radius: 12px;
  border: 1.5px solid #e3c391; background: #fff; font-size: 15px;
  font-family: inherit; transition: border-color .2s;
}
.guest-form input:focus { outline: none; border-color: var(--red); }
.btn-submit {
  cursor: pointer; padding: 12px 28px; border: none; border-radius: 12px;
  background: linear-gradient(180deg, var(--red), var(--red-dark));
  color: #fff; font-size: 15px; letter-spacing: 2px; font-weight: 600;
  box-shadow: 0 4px 0 #5c0a16; transition: transform .12s, box-shadow .12s;
}
.btn-submit:hover { filter: brightness(1.08); }
.btn-submit:active { transform: translateY(3px); box-shadow: 0 1px 0 #5c0a16; }

.guest-list {
  list-style: none; max-width: 780px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px;
}
.guest-item {
  background: #fff; border: 1px solid #f0d9b8; border-radius: 14px; padding: 16px;
  box-shadow: 0 4px 12px rgba(160, 90, 20, 0.07);
  animation: slideIn .4s ease;
}
@keyframes slideIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.guest-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.guest-avatar {
  width: 36px; height: 36px; border-radius: 50%; flex: none;
  background: linear-gradient(135deg, var(--red), #e0602e);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px;
}
.guest-name { font-weight: 600; color: var(--red-dark); font-size: 14px; }
.guest-time { font-size: 12px; color: #b08a52; }
.guest-msg { font-size: 14.5px; color: #4a3a2e; word-break: break-word; }
.guest-empty { text-align: center; color: #b08a52; font-size: 14px; }

/* ---------- 页脚 ---------- */
.footer {
  background: linear-gradient(180deg, var(--red-deep), #3d060f);
  color: #ffd9c8; text-align: center; padding: 44px 18px 30px;
}
.footer-slogan {
  font-family: "KaiTi", "STKaiti", serif; font-size: 26px; letter-spacing: 4px;
  color: var(--gold); margin-bottom: 10px;
}
.footer p { font-size: 13px; letter-spacing: 1px; }
.footer-meta { margin-top: 12px; opacity: .7; font-size: 12px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 34px; z-index: 1000;
  transform: translateX(-50%) translateY(80px);
  background: rgba(46, 8, 16, 0.94); color: var(--gold-light);
  padding: 11px 24px; border-radius: 999px; font-size: 14px;
  border: 1px solid rgba(255, 215, 0, 0.5);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  opacity: 0; transition: all .35s ease; pointer-events: none;
  max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .topbar-inner { flex-direction: column; gap: 6px; }
  .dove { width: 92px; right: 4%; top: 10%; }
  .section { padding: 60px 14px; }
  .btn-plus { font-size: 16px; padding: 14px 24px; }
  .slogan { letter-spacing: 3px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}