/* 书籍天堂 · 前台（手机优先阅读，柔和护眼） */

/* 本地字体（css/fonts/），不依赖外网 */
@font-face {
  font-family: "ZCOOL XiaoWei";
  src: url("fonts/ZCOOLXiaoWei-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "LXGW WenKai";
  src: url("fonts/LXGWWenKai-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #2c3330;
  --ink-soft: #4a534e;
  --muted: #6e7873;
  --paper: #f6f8f6;
  --panel: rgba(255, 255, 255, 0.86);
  --line: rgba(62, 69, 65, 0.08);
  --accent: #3f7f76;
  --accent-deep: #2f6a62;
  --accent-soft: rgba(90, 144, 136, 0.14);
  --danger: #a8655a;
  --shadow: 0 10px 32px rgba(62, 69, 65, 0.05);
  --radius: 14px;
  --max: 1040px;
  --font-brand: "ZCOOL XiaoWei", "LXGW WenKai", "PingFang SC", "Microsoft YaHei", serif;
  --font-chapter: "ZCOOL XiaoWei", "LXGW WenKai", "PingFang SC", "Microsoft YaHei", serif;
  --font-body: "LXGW WenKai", "PingFang SC", "Microsoft YaHei", serif;
  --font-ui: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-ui);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  text-shadow: 0 0 0.3px rgba(0, 0, 0, 0.2);
  background:
    radial-gradient(1100px 480px at 8% -8%, rgba(90, 144, 136, 0.12), transparent 58%),
    radial-gradient(900px 400px at 100% 0%, rgba(130, 150, 160, 0.08), transparent 52%),
    linear-gradient(180deg, #f2f5f3 0%, var(--paper) 40%, #eef2ef 100%);
  background-attachment: fixed;
}

a {
  color: var(--accent-deep);
  text-decoration: none;
}

a:hover {
  color: var(--accent);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(246, 248, 246, 0.92);
  border-bottom: 1px solid var(--line);
}

.site-header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  font-family: var(--font-brand);
  font-size: 1.75rem;
  line-height: 1.15;
  letter-spacing: 0.08em;
  color: var(--accent-deep);
  animation: brandIn 0.7s ease both;
}

.brand span {
  display: block;
  margin-top: 2px;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--muted);
  font-weight: 400;
}

.header-link {
  font-size: 0.92rem;
  color: var(--ink-soft);
  padding: 8px 10px;
  border-radius: 999px;
}

.header-link:hover {
  background: var(--accent-soft);
}

.page {
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px 16px 88px;
}

.hero-block {
  margin-bottom: 22px;
  animation: riseIn 0.65s ease both;
}

.hero-block h1 {
  margin: 0 0 8px;
  font-family: var(--font-brand);
  font-size: clamp(1.7rem, 5.5vw, 2.2rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--accent-deep);
}

.hero-block p {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 1.02rem;
  line-height: 1.7;
  max-width: 28em;
}

.filters {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
  animation: riseIn 0.7s ease 0.05s both;
}

.filters-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

@media (min-width: 560px) {
  .filters-row {
    grid-template-columns: 1.4fr 1fr 1fr auto;
    align-items: end;
  }
}

label.field {
  display: grid;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

input[type="search"],
input[type="text"],
select {
  width: 100%;
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
select:focus {
  border-color: rgba(15, 110, 99, 0.45);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 46px;
  padding: 0 18px;
  border: none;
  border-radius: 12px;
  font: inherit;
  font-size: 0.98rem;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s, opacity 0.2s;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(180deg, #5a9088, var(--accent-deep));
  color: #f7faf9;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink-soft);
  border: 1px solid var(--line);
}

.work-list {
  display: grid;
  gap: 12px;
}

.work-item {
  display: block;
  padding: 16px 16px 14px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s;
  animation: riseIn 0.55s ease both;
}

.work-item:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 110, 99, 0.28);
  color: inherit;
}

.work-item h2 {
  margin: 0 0 8px;
  font-family: var(--font-body);
  font-size: 1.28rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  color: var(--muted);
  font-size: 0.86rem;
  margin-bottom: 8px;
}

.meta b {
  font-weight: 500;
  color: var(--ink-soft);
}

.intro {
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.7;
}

.status {
  margin: 16px 0;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
}

.status.error {
  color: var(--danger);
}

.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.pager .info {
  color: var(--muted);
  font-size: 0.88rem;
}

/* 作品详情 */
.work-head {
  margin-bottom: 22px;
  animation: riseIn 0.6s ease both;
}

.work-head h1 {
  margin: 0 0 10px;
  font-family: var(--font-brand);
  font-size: clamp(1.6rem, 5vw, 2rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--accent-deep);
}

.work-intro {
  margin: 14px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  background: rgba(255, 255, 255, 0.7);
  border-radius: 0 12px 12px 0;
  color: var(--ink-soft);
  line-height: 1.75;
  font-family: var(--font-body);
  font-size: 1rem;
}

.section-title {
  margin: 0 0 12px;
  font-size: 0.86rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}

.chapter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.chapter-list a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink);
  transition: background 0.2s, border-color 0.2s;
  animation: riseIn 0.45s ease both;
}

.chapter-list a:hover {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(74, 124, 116, 0.28);
}

.chapter-list .ord {
  flex: 0 0 auto;
  width: 2.2em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
}

.chapter-list .title {
  flex: 1;
  font-family: var(--font-chapter);
  font-size: 1.16rem;
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: 0.06em;
  color: var(--accent-deep);
}

/* 阅读页：低对比护眼 */
body.read-page {
  background:
    radial-gradient(820px 360px at 50% -18%, rgba(90, 144, 136, 0.09), transparent 55%),
    linear-gradient(180deg, #f3f6f4 0%, #f8faf8 45%, #f1f4f2 100%);
}

.read-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(248, 250, 248, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.read-bar .back,
.read-bar .toc {
  font-size: 0.9rem;
  color: var(--ink-soft);
  padding: 8px 6px;
  white-space: nowrap;
}

.read-bar .work-name {
  flex: 1;
  min-width: 0;
  text-align: center;
  font-size: 0.86rem;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.read-article {
  max-width: 920px;
  margin: 0 auto;
  padding: 24px 18px 120px;
  animation: fadeRead 0.55s ease both;
}

.read-article h1 {
  margin: 0 0 28px;
  font-family: var(--font-chapter);
  font-size: clamp(1.7rem, 5.5vw, 2.2rem);
  font-weight: 400;
  text-align: center;
  letter-spacing: 0.1em;
  line-height: 1.55;
  color: var(--accent-deep);
}

.read-content {
  font-family: var(--font-body);
  font-size: 1.32rem;
  line-height: 2.05;
  color: #2f3733;
  font-weight: 400;
  letter-spacing: 0.04em;
  word-break: break-word;
}

.read-content p {
  margin: 0 0 1.05em;
  text-indent: 2em;
}

.read-content .blank-para {
  text-indent: 0;
  height: 0.55em;
  margin: 0;
}

.read-content .empty-para {
  text-indent: 0;
  text-align: center;
  color: var(--muted);
}

.read-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
  background: rgba(248, 250, 248, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
}

.read-nav .btn {
  min-height: 48px;
  font-size: 0.95rem;
  border-radius: 12px;
}

.read-nav .btn-ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
}

@media (min-width: 720px) {
  .read-content {
    font-size: 1.42rem;
    line-height: 2.1;
  }

  .page {
    padding-top: 28px;
    padding-left: 28px;
    padding-right: 28px;
  }

  .site-header-inner {
    padding-left: 28px;
    padding-right: 28px;
  }
}

@media (min-width: 1100px) {
  :root {
    --max: 1120px;
  }

  .read-article {
    max-width: 980px;
  }
}

@keyframes brandIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes fadeRead {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}