/* =============================================================
   满满和如意的家 — mainpage
   设计基调：暖白底（宣纸）、深墨字、墨绿 + 暖陶双点缀
   字号阶梯：12 / 14 / 16 / 18 / 24 / 32 / 48 / 56
   间距阶梯：4 / 8 / 12 / 16 / 24 / 32 / 48 / 64 / 96
   ============================================================= */

:root {
  --ink:        #1f2421;     /* 主文字：近黑墨色 */
  --ink-soft:   #4d574f;     /* 次文字 */
  --ink-mute:   #8a9189;     /* 弱化文字 */
  --line:       #e7e2d6;     /* 细分隔线：暖灰米 */
  --paper:      #faf7ef;     /* 主背景：宣纸色 */
  --paper-alt:  #f1ebd9;     /* 副背景：深一点的米色 */
  --accent:     #0f3a32;     /* 主点缀：墨绿 = 满满 */
  --accent-warm:#b8553a;     /* 副点缀：陶红 = 如意 */
  --accent-2:   #b8895a;     /* 三级点缀：焦糖 */
  --maxw:       1120px;
  --gutter:     clamp(20px, 4vw, 40px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html, body { margin: 0; padding: 0; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC",
               "Microsoft YaHei", -apple-system, BlinkMacSystemFont,
               "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- 通用 ---------- */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

a { color: inherit; text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--accent); }

.muted { color: var(--ink-mute); }

/* 无障碍：跳过导航 */
.skip-link {
  position: absolute; left: -9999px; top: 16px;
  background: var(--accent); color: #fff;
  padding: 8px 12px; border-radius: 4px;
}
.skip-link:focus { left: 16px; z-index: 999; }

/* ---------- 顶部 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 247, 239, 0.92);
  backdrop-filter: saturate(160%) blur(8px);
  -webkit-backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  display: inline-block;          /* inline-block 才能让 .brand-mark-dot
                                     保持 inline、不会变成各占一行的 flex item */
  vertical-align: middle;
  text-align: center;
  /* auto width + horizontal padding keeps 「满·意」 on a single line in
     both the header (44px) and the narrower footer badge (40px). */
  width: auto; min-width: 44px; height: 36px;
  line-height: 34px;              /* 视觉居中（高度 36 - 上下 1 = 34） */
  padding: 0 6px;
  border-radius: 8px;
  background: var(--accent); color: #efe7d6;
  font-family: "Noto Serif CJK SC", "Songti SC", serif;
  font-weight: 600; font-size: 16px; letter-spacing: 0;
  white-space: nowrap;            /* 关键：禁止 CJK 在字间断行 */
  flex-shrink: 0;                 /* flex 容器里不被挤压换行 */
}
/* 中点是个 inline span，在 inline-block 容器里保持 inline，与「满」「意」同行 */
.brand-mark-dot {
  display: inline;
  opacity: .5; margin: 0 1px; font-weight: 400;
}
.brand-name { display: flex; flex-direction: column; line-height: 1.1; }
.brand-zh  { font-size: 16px; font-weight: 600; letter-spacing: .04em; }
.brand-en  { font-size: 12px; color: var(--ink-mute); letter-spacing: .02em; }
.site-nav { display: flex; gap: 28px; font-size: 14px; }
.site-nav a { color: var(--ink-soft); }
.site-nav a:hover { color: var(--accent); }

@media (max-width: 560px) {
  .site-nav { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  padding: clamp(72px, 12vw, 140px) 0 clamp(56px, 8vw, 96px);
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  margin: 0 0 24px;
  font-size: 12px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--ink-mute);
}
.hero-title {
  margin: 0 0 24px;
  font-family: "Noto Serif CJK SC", "Songti SC", "STSong", serif;
  font-size: clamp(32px, 6vw, 56px);
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--ink);
}
.hero-title .line-2 { display: block; }
.hero-sub {
  margin: 0 0 40px;
  max-width: 36em;
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--ink-soft);
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 44px; padding: 0 22px;
  border-radius: 999px;
  font-size: 14px; letter-spacing: .04em;
  border: 1px solid transparent;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #0c2b25; color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }

/* ---------- 章节 ---------- */
.section { padding: clamp(64px, 8vw, 112px) 0; }
.section-alt { background: var(--paper-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-head { max-width: 640px; margin-bottom: 48px; }
.section-num {
  display: inline-block;
  font-family: "Noto Serif CJK SC", "Songti SC", serif;
  font-size: 13px; color: var(--accent-2);
  letter-spacing: .2em;
  margin-bottom: 12px;
}
.section h2 {
  margin: 0 0 12px;
  font-family: "Noto Serif CJK SC", "Songti SC", serif;
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 600;
  letter-spacing: .04em;
}
.section-lede { margin: 0; color: var(--ink-soft); font-size: 16px; }

/* 两列：左标签 / 右正文 */
.two-col {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: start;
}
.col-label h2 { font-size: 28px; }
.col-body p { margin: 0 0 16px; max-width: 56ch; color: var(--ink-soft); }
@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; gap: 16px; }
}

/* ---------- 卡片 ---------- */
.cards {
  list-style: none; margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .cards { grid-template-columns: 1fr; } }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 32px 28px;
  transition: transform .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-2px); border-color: var(--accent); }
.card-num {
  font-family: "Noto Serif CJK SC", "Songti SC", serif;
  font-size: 28px;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: .04em;
}
.card-title {
  margin: 0 0 4px;
  font-size: 20px; font-weight: 600;
  font-family: "Noto Serif CJK SC", "Songti SC", serif;
  letter-spacing: .04em;
}
.card-sub {
  margin: 0 0 16px;
  font-size: 13px; color: var(--ink-mute);
  letter-spacing: .04em;
}
.card-body { margin: 0 0 16px; color: var(--ink-soft); font-size: 15px; line-height: 1.75; }
.card-foot {
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
}

/* ---------- 孩子卡片 ---------- */
.cards-children { grid-template-columns: 1fr 1fr; }
@media (max-width: 900px) { .cards-children { grid-template-columns: 1fr; } }

.card-child {
  display: grid;
  grid-template-columns: 96px 1fr;
  grid-template-rows: auto auto auto auto;
  column-gap: 20px;
  row-gap: 12px;
  padding: 28px;
  position: relative;
  overflow: hidden;
}
.card-child-man { border-top: 3px solid var(--accent); }
.card-child-ruyi { border-top: 3px solid var(--accent-warm); }

.card-portrait {
  grid-row: 1 / span 4;
  display: grid; place-items: center;
  width: 96px; height: 96px;
  border-radius: 50%;
  font-family: "Noto Serif CJK SC", "Songti SC", serif;
  color: #fff;
  font-size: 40px; font-weight: 600;
  letter-spacing: 0;
}
.card-child-man   .card-portrait { background: var(--accent); }
.card-child-ruyi  .card-portrait { background: var(--accent-warm); }

.card-meta { grid-column: 2; }
.card-child .card-body { grid-column: 2; margin: 0; }
.card-facts {
  grid-column: 1 / -1;
  list-style: none; padding: 0; margin: 0;
  border-top: 1px dashed var(--line);
  padding-top: 12px;
  display: grid; gap: 8px;
}
.card-facts li {
  display: grid; grid-template-columns: 90px 1fr; gap: 12px;
  font-size: 14px;
}
.card-facts .k { color: var(--ink-mute); }
.card-facts .v { color: var(--ink); }
.card-child .card-foot { grid-column: 1 / -1; margin: 0; }

@media (max-width: 480px) {
  .card-child { grid-template-columns: 64px 1fr; padding: 24px; column-gap: 16px; }
  .card-portrait { width: 64px; height: 64px; font-size: 28px; }
  .card-facts li { grid-template-columns: 80px 1fr; }
}

/* ---------- 家书 ---------- */
.letter-list {
  list-style: none; padding: 0; margin: 8px 0 24px;
  border-top: 1px solid var(--line);
}
.letter-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.letter-date {
  font-family: "Noto Serif CJK SC", "Songti SC", serif;
  color: var(--accent-2);
  letter-spacing: .12em;
  font-size: 14px;
}
.letter-body { margin: 0; color: var(--ink-soft); font-size: 15px; }
.letter-item.muted { opacity: .65; }
.letter-item.muted .letter-date { color: var(--ink-mute); }
@media (max-width: 560px) {
  .letter-item { grid-template-columns: 1fr; gap: 4px; padding: 16px 0; }
}

/* ---------- 段落内联 ---------- */
.inline {
  font-family: "SF Mono", ui-monospace, "Menlo", "Consolas", monospace;
  font-size: .92em;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(15, 58, 50, .06);
  color: var(--accent);
}

/* ---------- 联系 ---------- */
.contact-list {
  list-style: none; padding: 0; margin: 16px 0 24px;
  border-top: 1px solid var(--line);
}
.contact-list li {
  display: grid; grid-template-columns: 80px 1fr;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.contact-list .k { color: var(--ink-mute); }
.contact-list .v { color: var(--ink); }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--accent);
  color: #efe7d6;
  padding: 32px 0;
  margin-top: 0;
}
.footer-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.footer-brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; letter-spacing: .04em;
}
.footer-brand .brand-mark {
  background: #efe7d6; color: var(--accent);
  /* override header height + font-size for the footer band */
  height: 32px; min-width: 40px; line-height: 30px; font-size: 14px; border-radius: 6px;
  /* keep the nowrap rule from .brand-mark — no extra rules needed */
}
.icp {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px;
}
.icp a { display: inline-flex; align-items: center; gap: 6px; opacity: .9; }
.icp a:hover { opacity: 1; }
.icp-glyph { display: inline-block; vertical-align: -2px; }
.icp .muted { color: rgba(239, 231, 214, .6); }
.icp-sep { color: rgba(239, 231, 214, .4); }

/* ---------- 打印 / 减弱动画 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
@media print {
  .site-header, .hero-cta { display: none; }
  body { background: #fff; color: #000; }
  .section, .hero { padding: 16px 0; }
}

/* ---------- 选区色 ---------- */
::selection { background: var(--accent); color: #efe7d6; }