/* =========================================================
   hh & ff · 我们的相册
   暖象牙地面 / 墨褐文字 / 酒红重音 / 橡木细线
   ========================================================= */

:root {
  --ground: #F7F3EC;
  --mat:    #FFFDF8;
  --ink:    #2B2521;
  --wine:   #7A2E3B;
  --oak:    #B98A5A;
  --muted:  #9A9086;
  --hair:   rgba(43, 37, 33, 0.13);

  --max: 1040px;
  --serif: "Fraunces", "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --sans:  "Hanken Grotesk", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

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

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;      /* 17px */
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; }

a { color: inherit; }

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

/* ---------- 顶栏 ---------- */

.topbar {
  max-width: var(--max);
  margin: 0 auto;
  padding: 26px 24px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  border-bottom: 1px solid var(--hair);
}

.topbar__mark {
  font-family: var(--serif);
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.topbar__since {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

/* ---------- 首屏 ---------- */

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 24px 88px;
  text-align: center;
}

.hero__figure {
  margin: 0 auto;
  max-width: 620px;
  padding: 14px;                       /* 像装裱留白 */
  background: var(--mat);
  border: 1px solid var(--hair);
  border-radius: 2px;
  animation: rise 0.9s 0.05s both var(--ease);
}

.hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 1px;
}

.hero__meta {
  margin-top: 40px;
  animation: rise 0.9s 0.22s both var(--ease);
}

.hero__date {
  margin: 0;
  font-family: var(--serif);
  font-size: 0.9375rem;
  letter-spacing: 0.2em;
  color: var(--wine);
}

.hero__names {
  margin: 0.3em 0 0.5em;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(3rem, 11vw, 5.25rem);
  line-height: 1;
  letter-spacing: -0.01em;
}

.hero__days {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

.hero__days b {
  font-weight: 500;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.hero__cue {
  display: inline-block;
  margin-top: 48px;
  font-size: 1rem;
  color: var(--muted);
  text-decoration: none;
  animation: rise 0.9s 0.4s both var(--ease);
}

.hero__cue span { display: inline-block; }
.hero__cue:hover { color: var(--wine); }

/* ---------- 时间轴 ---------- */

.timeline {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px 120px;
}

.chapter {
  position: relative;
  padding: 80px 0 80px 40px;
  border-left: 1px solid var(--hair);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.chapter.is-visible {
  opacity: 1;
  transform: none;
}

.chapter::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 98px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--wine);
}

.chapter__year {
  margin: 0 0 20px;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(2.25rem, 7vw, 3.5rem);
  line-height: 1;
  letter-spacing: -0.01em;
}

.chapter__note {
  margin: 0 0 28px;
  max-width: 44ch;
  color: var(--muted);
  line-height: 1.85;
}

.photos {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.photo { margin: 0; }

.photo img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--hair);
  border-radius: 2px;
}

.photo figcaption {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-top: 12px;
  font-size: 0.8125rem;
  color: var(--muted);
}

.photo__date {
  font-family: var(--serif);
  letter-spacing: 0.05em;
  color: var(--wine);
}

/* 空年份：温柔的邀请，而不是占位符 */

.slot {
  border: 1px solid var(--hair);
  border-radius: 2px;
  padding: 56px 24px;
  text-align: center;
}

.slot__hint {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 页脚 ---------- */

.footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 24px 64px;
  border-top: 1px solid var(--hair);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font-size: 0.75rem;
  color: var(--muted);
}

.footer__mark {
  font-family: var(--serif);
  font-size: 0.875rem;
  color: var(--ink);
}

.footer__since { letter-spacing: 0.12em; }

.noscript {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px 64px;
  color: var(--muted);
}

/* ---------- 桌面 ---------- */

@media (min-width: 820px) {
  .chapter {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 40px;
    padding-left: 56px;
  }

  .chapter__year { margin-bottom: 0; }
  .chapter__body { padding-top: 6px; }

  .photos { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}

/* ---------- 入场 ---------- */

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- 减少动态 ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .chapter {
    opacity: 1 !important;
    transform: none !important;
  }
}