/* ============================================
   静水流深 · 个人网站样式
   主题：读书会领读 / 疗愈 / 传统文化
   ============================================ */

:root {
  --paper: #f7f4ed;        /* 宣纸米白 */
  --paper-dark: #efe9dd;   /* 略深的纸色 */
  --ink: #2e2a24;          /* 墨色 */
  --ink-soft: #5b544a;     /* 淡墨 */
  --ink-faint: #8c8375;    /* 极淡墨 */
  --cinnabar: #a0522d;     /* 赭石 */
  --cinnabar-deep: #7c3e21;
  --tea: #6b7d6a;          /* 苔绿 */
  --gold: #b08d57;         /* 暖金 */
  --line: #dcd4c4;         /* 界线 */
  --card: #fffdf8;         /* 卡片底 */
  --shadow: 0 2px 12px rgba(46, 42, 36, .07);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", serif;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.8;
  letter-spacing: .02em;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.container { width: min(1120px, 92%); margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(247, 244, 237, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: var(--shadow); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: .25em;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand .seal {
  width: 34px; height: 34px;
  background: var(--cinnabar);
  color: #fff;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .95rem;
  letter-spacing: 0;
}

.nav-links { display: flex; gap: 34px; list-style: none; }
.nav-links a {
  font-size: .95rem;
  color: var(--ink-soft);
  padding: 6px 2px;
  position: relative;
  transition: color .25s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  width: 0; height: 2px;
  background: var(--cinnabar);
  transition: width .25s, left .25s;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { width: 100%; left: 0; }
.nav-links a.active { color: var(--cinnabar); font-weight: 600; }
.nav-links a.active::after { width: 100%; left: 0; }

/* 移动端菜单 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--ink);
  transition: .3s;
}

/* ---------- 首页轮播 ---------- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 560px;
  overflow: hidden;
  margin-top: 0;
}
.carousel { position: relative; height: 100%; }
.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
  will-change: opacity;
}
.slide.active { opacity: 1; z-index: 1; }
.slide img {
  width: 100%; height: 100%;
  object-fit: cover;
  animation: kenburns 9s ease-out forwards;
}
@keyframes kenburns {
  from { transform: scale(1); }
  to { transform: scale(1.06); }
}
.slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(30, 26, 20, .18) 0%,
    rgba(30, 26, 20, .10) 45%,
    rgba(30, 26, 20, .45) 100%
  );
}
.slide-caption {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fdfaf3;
  padding: 0 6%;
}
.slide-caption h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.9rem, 4.5vw, 3.4rem);
  font-weight: 600;
  letter-spacing: .18em;
  text-shadow: 0 2px 18px rgba(0, 0, 0, .35);
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1s .4s, transform 1s .4s;
}
.slide-caption p {
  margin-top: 18px;
  font-size: clamp(.95rem, 1.6vw, 1.15rem);
  letter-spacing: .35em;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1s .7s, transform 1s .7s;
}
.slide-caption .divider {
  width: 1px; height: 44px;
  background: rgba(253, 250, 243, .75);
  margin: 26px 0 0;
}
.slide.active .slide-caption h2,
.slide.active .slide-caption p { opacity: 1; transform: translateY(0); }

/* 轮播控制 */
.carousel-dots {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 14px;
  z-index: 3;
}
.dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(253, 250, 243, .8);
  background: transparent;
  cursor: pointer;
  transition: .3s;
  padding: 0;
}
.dot.active { background: #fdfaf3; transform: scale(1.15); }

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(253, 250, 243, .55);
  background: rgba(30, 26, 20, .25);
  color: #fdfaf3;
  font-size: 1.2rem;
  cursor: pointer;
  transition: .3s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.carousel-arrow:hover { background: rgba(30, 26, 20, .5); }
.arrow-prev { left: 4%; }
.arrow-next { right: 4%; }

.scroll-hint {
  position: absolute;
  bottom: 78px; left: 50%;
  transform: translateX(-50%);
  color: rgba(253, 250, 243, .85);
  font-size: .78rem;
  letter-spacing: .3em;
  z-index: 3;
  animation: float 2.4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

/* ---------- 内页头部 ---------- */
.page-hero {
  margin-top: 68px;
  padding: 90px 0 70px;
  text-align: center;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(176, 141, 87, .10), transparent 55%),
    radial-gradient(ellipse at 85% 100%, rgba(107, 125, 106, .12), transparent 55%),
    var(--paper-dark);
  border-bottom: 1px solid var(--line);
}
.page-hero .zh-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 600;
  letter-spacing: .22em;
}
.page-hero .zh-title::after {
  content: "";
  display: block;
  width: 46px; height: 2px;
  background: var(--cinnabar);
  margin: 22px auto 0;
}
.page-hero .sub {
  margin-top: 18px;
  color: var(--ink-faint);
  letter-spacing: .4em;
  font-size: .85rem;
}

/* ---------- 通用区块 ---------- */
.section { padding: 86px 0; }
.section.alt { background: var(--paper-dark); }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  letter-spacing: .2em;
  font-weight: 600;
}
.section-head .en {
  display: block;
  margin-top: 10px;
  font-size: .75rem;
  letter-spacing: .35em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.section-head p.desc {
  margin: 18px auto 0;
  max-width: 560px;
  color: var(--ink-soft);
  font-size: .95rem;
}

/* 首页三栏卡片 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  transition: transform .35s, box-shadow .35s;
}
.card:hover { transform: translateY(-8px); box-shadow: 0 14px 30px rgba(46, 42, 36, .12); }
.card .card-img { aspect-ratio: 16 / 10; overflow: hidden; }
.card .card-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s;
}
.card:hover .card-img img { transform: scale(1.05); }
.card-body { padding: 28px 26px 30px; }
.card-body h3 {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  letter-spacing: .12em;
  margin-bottom: 12px;
}
.card-body p {
  color: var(--ink-soft);
  font-size: .92rem;
  line-height: 1.9;
}
.card-body .more {
  display: inline-block;
  margin-top: 16px;
  font-size: .85rem;
  color: var(--cinnabar);
  letter-spacing: .15em;
  border-bottom: 1px solid transparent;
  transition: border-color .25s;
}
.card-body .more:hover { border-color: var(--cinnabar); }

/* 引言 */
.quote-band {
  padding: 70px 0;
  background: var(--ink);
  color: #efe9dd;
  text-align: center;
}
.quote-band blockquote {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  letter-spacing: .14em;
  max-width: 720px;
  margin: 0 auto;
  line-height: 2;
}
.quote-band cite {
  display: block;
  margin-top: 22px;
  font-style: normal;
  font-size: .85rem;
  letter-spacing: .3em;
  color: #b08d57;
}

/* 数据条 */
.stats-band { padding: 60px 0; background: var(--paper-dark); border-top: 1px solid var(--line); }
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
.stat .num {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  color: var(--cinnabar);
  font-weight: 600;
}
.stat .num small { font-size: 1.1rem; margin-left: 2px; }
.stat .label { margin-top: 6px; color: var(--ink-faint); font-size: .88rem; letter-spacing: .18em; }

/* ---------- 关于页 ---------- */
.about-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.about-photo {
  position: relative;
}
.about-photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 10px;
}
.about-photo::before {
  content: "";
  position: absolute;
  inset: 18px -18px -18px 18px;
  border: 1px solid var(--gold);
  border-radius: 10px;
  z-index: -1;
}
.about-text h2 {
  font-family: var(--font-serif);
  font-size: 1.9rem;
  letter-spacing: .15em;
  margin-bottom: 8px;
}
.about-text .role {
  color: var(--cinnabar);
  letter-spacing: .25em;
  font-size: .9rem;
  margin-bottom: 26px;
}
.about-text p { color: var(--ink-soft); margin-bottom: 18px; font-size: .98rem; }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.tag-list span {
  font-size: .82rem;
  color: var(--tea);
  border: 1px solid var(--tea);
  border-radius: 999px;
  padding: 4px 16px;
  letter-spacing: .1em;
}

/* 时间线 */
.timeline { max-width: 720px; margin: 0 auto; position: relative; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 1px;
  background: var(--line);
}
.tl-item { position: relative; padding-bottom: 40px; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -32px; top: 9px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--cinnabar);
}
.tl-item .year {
  font-family: var(--font-serif);
  color: var(--cinnabar);
  letter-spacing: .12em;
  font-size: 1rem;
}
.tl-item h4 { margin: 6px 0 8px; font-size: 1.05rem; letter-spacing: .08em; }
.tl-item p { color: var(--ink-soft); font-size: .92rem; }

/* ---------- 读书会列表 ---------- */
.book-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.book-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
  transition: transform .3s, box-shadow .3s;
}
.book-item:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.book-item .cover {
  aspect-ratio: 3 / 4;
  border-radius: 6px;
  overflow: hidden;
}
.book-item .cover img { width: 100%; height: 100%; object-fit: cover; }
.book-item h3 {
  font-family: var(--font-serif);
  font-size: 1.12rem;
  letter-spacing: .1em;
}
.book-item .meta {
  margin: 8px 0 12px;
  color: var(--ink-faint);
  font-size: .82rem;
  letter-spacing: .08em;
}
.book-item .meta em { color: var(--cinnabar); font-style: normal; }
.book-item p { color: var(--ink-soft); font-size: .9rem; }

/* 流程步骤 */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 34px 24px;
  text-align: center;
  position: relative;
  counter-increment: step;
}
.step::before {
  content: counter(step, cjk-ideographic);
  font-family: var(--font-serif);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px; height: 46px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--paper-dark);
  color: var(--cinnabar);
  border: 1px solid var(--line);
  font-size: 1.15rem;
}
.step h4 { font-size: 1.02rem; letter-spacing: .1em; margin-bottom: 10px; }
.step p { color: var(--ink-soft); font-size: .88rem; }

/* ---------- 疗愈服务 ---------- */
.heal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.heal-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  transition: transform .35s, box-shadow .35s;
}
.heal-item:hover { transform: translateY(-8px); box-shadow: 0 14px 30px rgba(46, 42, 36, .12); }
.heal-item .heal-img { aspect-ratio: 16 / 9; overflow: hidden; }
.heal-item .heal-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.heal-item:hover .heal-img img { transform: scale(1.05); }
.heal-body { padding: 26px; }
.heal-body h3 { font-family: var(--font-serif); font-size: 1.15rem; letter-spacing: .12em; }
.heal-body .dur {
  display: inline-block;
  margin: 10px 0 12px;
  font-size: .8rem;
  color: var(--gold);
  letter-spacing: .1em;
}
.heal-body p { color: var(--ink-soft); font-size: .9rem; }

/* ---------- 传统文化文章 ---------- */
.article-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }

/* ---------- 联系页 ---------- */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info h3, .contact-form-wrap h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  letter-spacing: .15em;
  margin-bottom: 24px;
}
.contact-info p { color: var(--ink-soft); margin-bottom: 14px; font-size: .95rem; }
.contact-info .way {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}
.contact-info .way .k {
  min-width: 72px;
  color: var(--cinnabar);
  font-size: .88rem;
  letter-spacing: .15em;
}
.contact-info .way .v { color: var(--ink-soft); font-size: .95rem; }

.contact-form label {
  display: block;
  font-size: .85rem;
  color: var(--ink-soft);
  letter-spacing: .1em;
  margin: 18px 0 8px;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--card);
  font-family: var(--font-sans);
  font-size: .95rem;
  color: var(--ink);
  outline: none;
  transition: border-color .25s, box-shadow .25s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--cinnabar);
  box-shadow: 0 0 0 3px rgba(160, 82, 45, .08);
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 26px;
  padding: 13px 46px;
  background: var(--cinnabar);
  color: #fdfaf3;
  border: none;
  border-radius: 999px;
  font-size: .95rem;
  letter-spacing: .25em;
  cursor: pointer;
  transition: background .3s, transform .2s;
  font-family: var(--font-sans);
}
.btn:hover { background: var(--cinnabar-deep); transform: translateY(-2px); }

/* 微信二维码占位 */
.qr-placeholder {
  margin-top: 28px;
  width: 160px; height: 160px;
  border: 1px dashed var(--line);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--ink-faint);
  font-size: .78rem;
  letter-spacing: .15em;
  text-align: center;
  line-height: 1.7;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--ink);
  color: #b7ae9e;
  padding: 56px 0 30px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 46px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(253, 250, 243, .12);
}
.footer-grid h4 {
  color: #efe9dd;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  letter-spacing: .2em;
  margin-bottom: 18px;
}
.footer-grid p, .footer-grid li {
  font-size: .88rem;
  line-height: 2.1;
  list-style: none;
}
.footer-grid a { transition: color .25s; }
.footer-grid a:hover { color: #fdfaf3; }
.footer-brand {
  font-family: var(--font-serif);
  color: #efe9dd;
  font-size: 1.2rem;
  letter-spacing: .3em;
  margin-bottom: 14px;
}
.copyright {
  text-align: center;
  padding-top: 26px;
  font-size: .78rem;
  letter-spacing: .12em;
  color: #7d766a;
}

/* ---------- 动画渐入 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .card-grid, .heal-grid, .article-list, .steps { grid-template-columns: 1fr 1fr; }
  .about-layout, .contact-layout { grid-template-columns: 1fr; gap: 44px; }
  .stats { grid-template-columns: 1fr 1fr; gap: 34px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .book-list { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-links {
    position: fixed;
    top: 68px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
  }
  .nav-links.open { max-height: 320px; }
  .nav-links li { border-top: 1px solid var(--line); }
  .nav-links a { display: block; padding: 15px 8%; }
  .nav-toggle { display: flex; }
  .card-grid, .heal-grid, .article-list, .steps { grid-template-columns: 1fr; }
  .carousel-arrow { display: none; }
  .slide-caption p { letter-spacing: .2em; }
  .book-item { grid-template-columns: 90px 1fr; gap: 16px; }
}