/* ===== 森屿日记 · 清新自然主题 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --green-900: #2e4b3a;
  --green-800: #33691e;
  --green-700: #2e7d32;
  --green-600: #558b2f;
  --green-500: #689f38;
  --green-400: #8bc34a;
  --green-300: #a5d6a7;
  --green-200: #c8e6c9;
  --green-100: #e8f5e9;
  --cream: #f1f8e9;
  --mist: #e0f2f1;
  --paper: #ffffff;
  --ink: #2e4b3a;
  --ink-soft: #5a7a66;
  --ink-faint: #7cb342;
  --sun: #ffd54f;
  --sun-glow: rgba(255, 213, 79, 0.45);
  --shadow: rgba(46, 75, 58, 0.1);
  --radius: 18px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: Georgia, "STKaiti", "KaiTi", serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: linear-gradient(180deg, var(--green-100) 0%, var(--cream) 40%, var(--mist) 100%);
  background-attachment: fixed;
  color: var(--ink);
  line-height: 1.8;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== 背景装饰：飘叶 & 飞鸟 ===== */
#leaves { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.leaf { position: absolute; user-select: none; opacity: 0.7; }
.bird { position: fixed; font-size: 14px; z-index: 0; pointer-events: none; opacity: 0.5; }
.mountain { position: fixed; bottom: 0; left: 0; right: 0; z-index: 0; pointer-events: none; }
.mountain svg { display: block; width: 100%; height: 130px; }

@keyframes fall {
  0% { transform: translateY(-12vh) rotate(0deg); }
  100% { transform: translateY(112vh) rotate(360deg); }
}
@keyframes fly {
  0% { transform: translateX(-10vw) translateY(0); }
  50% { transform: translateX(55vw) translateY(-36px); }
  100% { transform: translateX(112vw) translateY(0); }
}

/* ===== 布局 ===== */
.wrap {
  position: relative; z-index: 2;
  width: 100%; max-width: 860px; margin: 0 auto; padding: 30px 20px 90px;
  flex: 1;
}

/* ===== 导航 ===== */
.site-header {
  position: relative; z-index: 3;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(104, 159, 56, 0.18);
}
.nav-inner {
  max-width: 900px; margin: 0 auto; padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand .sun-mini {
  width: 36px; height: 36px; border-radius: 50%;
  background: radial-gradient(circle, #fff9c4, var(--sun));
  box-shadow: 0 0 18px var(--sun-glow);
  display: grid; place-items: center; font-size: 15px;
  animation: pulse 4s ease-in-out infinite;
}
.brand .b-name { font-family: var(--serif); font-size: 20px; font-weight: 700; letter-spacing: 2px; }
.brand .b-name small { display: block; font-size: 10px; font-weight: 400; letter-spacing: 3px; color: var(--ink-faint); }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.12); } }

.site-nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.site-nav a {
  color: var(--green-600); text-decoration: none; font-size: 14px; letter-spacing: 2px;
  padding: 4px 2px; position: relative;
}
.site-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--green-500); border-radius: 2px; transition: width 0.4s;
}
.site-nav a:hover::after { width: 100%; }
.site-nav a.active { color: var(--green-800); font-weight: 600; }
.site-nav .nav-btn {
  background: var(--green-500); color: #fff; padding: 7px 18px; border-radius: 40px;
  letter-spacing: 1px; transition: all 0.3s;
}
.site-nav .nav-btn::after { display: none; }
.site-nav .nav-btn:hover { background: var(--green-700); transform: translateY(-2px); box-shadow: 0 8px 18px var(--shadow); }
.site-nav .nav-btn.logout { background: transparent; border: 1px solid var(--green-400); color: var(--green-600); margin-left: 14px; }

/* ===== 首屏 Hero ===== */
.hero { text-align: center; padding: 50px 0 34px; }
.hero .sun {
  width: 74px; height: 74px; border-radius: 50%; margin: 0 auto 18px;
  background: radial-gradient(circle, #fff9c4, var(--sun));
  box-shadow: 0 0 60px 20px var(--sun-glow);
  animation: pulse 4s ease-in-out infinite;
}
.hero h1 {
  font-family: var(--serif); font-size: 46px; letter-spacing: 6px; color: var(--green-800);
}
.hero .sub { color: var(--green-500); font-size: 14px; letter-spacing: 4px; margin-top: 10px; }

/* ===== 文章卡片 ===== */
.card-list { display: grid; gap: 26px; margin-top: 26px; }
.card {
  background: rgba(255, 255, 255, 0.82); backdrop-filter: blur(4px);
  border: 1px solid rgba(104, 159, 56, 0.22); border-radius: var(--radius);
  padding: 26px; position: relative; overflow: hidden;
  box-shadow: 0 10px 30px var(--shadow);
  transition: transform 0.4s, box-shadow 0.4s;
}
.card::before {
  content: "🌿"; position: absolute; top: -6px; right: 14px; font-size: 30px;
  opacity: 0.22; transform: rotate(20deg);
}
.card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(46, 75, 58, 0.16); }
.card .date { font-size: 12px; color: var(--green-400); letter-spacing: 2px; font-weight: 600; }
.card h2 { font-size: 22px; color: var(--ink); margin: 10px 0; }
.card h2 a { color: inherit; text-decoration: none; transition: color 0.3s; }
.card h2 a:hover { color: var(--green-600); }
.card .summary { font-size: 14px; line-height: 1.9; color: var(--ink-soft); }
.card .leafbar { display: flex; gap: 4px; margin-top: 14px; opacity: 0.55; }
.card .leafbar span { animation: sway 2.4s ease-in-out infinite; display: inline-block; }
.card .leafbar span:nth-child(2n) { animation-delay: 0.4s; }
.card .leafbar span:nth-child(3n) { animation-delay: 0.8s; }
@keyframes sway { 0%, 100% { transform: rotate(-8deg); } 50% { transform: rotate(8deg); } }
.card .tags { margin-top: 12px; }
.card .tag {
  display: inline-block; font-size: 11px; color: var(--green-600);
  background: var(--green-100); border-radius: 20px; padding: 3px 12px; margin-right: 6px;
  transition: all 0.3s;
}
.card .tag:hover { background: var(--green-500); color: #fff; }

.empty { text-align: center; color: var(--ink-faint); padding: 40px 0; font-size: 15px; }

/* ===== 文章详情页 ===== */
.article-card {
  background: rgba(255, 255, 255, 0.9); border-radius: var(--radius);
  border: 1px solid rgba(104, 159, 56, 0.2);
  box-shadow: 0 10px 30px var(--shadow);
  padding: 40px 42px;
}
.article-card .back { display: inline-block; margin-bottom: 22px; color: var(--green-600); text-decoration: none; font-size: 14px; }
.article-card .back:hover { color: var(--green-800); }
.article-card h1 { font-family: var(--serif); font-size: 34px; color: var(--ink); line-height: 1.4; }
.article-card .meta { display: flex; gap: 18px; flex-wrap: wrap; margin: 16px 0 26px; font-size: 13px; color: var(--ink-faint); letter-spacing: 1px; }
.article-card .meta .sep { opacity: 0.4; }
.article-content { font-size: 15.5px; color: #405a49; line-height: 2; }
.article-content h1 { font-size: 26px; margin: 30px 0 12px; }
.article-content h2 { font-size: 22px; margin: 28px 0 12px; color: var(--green-800); }
.article-content h3 { font-size: 18px; margin: 24px 0 10px; color: var(--green-700); }
.article-content p { margin: 12px 0; }
.article-content ul, .article-content ol { margin: 12px 0 12px 24px; }
.article-content li { margin: 4px 0; }
.article-content code {
  background: var(--green-100); color: var(--green-800); padding: 2px 8px; border-radius: 6px;
  font-family: "Courier New", Consolas, monospace; font-size: 0.92em;
}
.article-content strong { color: var(--green-800); }
.article-content blockquote {
  border-left: 4px solid var(--green-400); background: var(--green-100);
  padding: 12px 20px; margin: 16px 0; border-radius: 0 10px 10px 0; color: var(--ink-soft);
}
.article-tags { margin-top: 30px; padding-top: 18px; border-top: 1px dashed rgba(104, 159, 56, 0.3); }
.article-actions { margin-top: 20px; display: flex; gap: 12px; }
.notfound { text-align: center; padding: 80px 20px; }
.notfound h2 { font-size: 26px; margin-bottom: 10px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 26px; border-radius: 40px; font-size: 14px; font-weight: 600;
  border: none; cursor: pointer; text-decoration: none; font-family: inherit;
  transition: all 0.3s; letter-spacing: 1px;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary { background: var(--green-600); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--green-800); transform: translateY(-2px); box-shadow: 0 10px 22px var(--shadow); }
.btn-ghost { background: transparent; color: var(--green-600); border: 1.5px solid var(--green-400); }
.btn-ghost:hover { background: var(--green-100); }
.btn-danger { background: #e57373; color: #fff; }
.btn-danger:hover { background: #c62828; transform: translateY(-2px); }
.btn-sm { padding: 7px 16px; font-size: 12.5px; }
.btn-block { width: 100%; }

/* ===== 表单 ===== */
.auth-box {
  max-width: 420px; margin: 40px auto; background: rgba(255, 255, 255, 0.92);
  border-radius: var(--radius); border: 1px solid rgba(104, 159, 56, 0.22);
  box-shadow: 0 10px 30px var(--shadow); padding: 36px 34px;
}
.auth-box h2 { font-family: var(--serif); text-align: center; color: var(--green-800); margin-bottom: 6px; }
.auth-box .tip { text-align: center; font-size: 12px; color: var(--ink-faint); margin-bottom: 24px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; color: var(--green-700); margin-bottom: 7px; letter-spacing: 1px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 14px; font-size: 14px; font-family: inherit;
  border: 1.5px solid var(--green-200); border-radius: 10px; background: #fbfdf7; color: var(--ink);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--green-500); box-shadow: 0 0 0 3px rgba(104, 159, 56, 0.15);
}
.form-group textarea { resize: vertical; line-height: 1.8; }
.form-group .hint { font-size: 12px; color: var(--ink-faint); margin-top: 5px; }
.checkbox-row { display: flex; align-items: center; gap: 10px; }
.checkbox-row input { width: auto; }
.checkbox-row label { margin: 0; cursor: pointer; }

.msg { display: none; padding: 12px 16px; border-radius: 10px; font-size: 13px; margin-bottom: 16px; }
.msg.show { display: block; }
.msg-error { background: #ffebee; color: #c62828; border: 1px solid #ffcdd2; }
.msg-success { background: #e8f5e9; color: #2e7d32; border: 1px solid #c8e6c9; }

/* ===== 管理后台 ===== */
.admin-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin: 26px 0 22px; }
.admin-head h2 { font-family: var(--serif); color: var(--green-800); }
.admin-table {
  width: 100%; border-collapse: collapse; background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid rgba(104, 159, 56, 0.22); box-shadow: 0 10px 30px var(--shadow);
}
.admin-table th, .admin-table td { padding: 14px 16px; text-align: left; font-size: 14px; }
.admin-table th {
  background: var(--green-100); color: var(--green-700); font-size: 12px; letter-spacing: 2px;
  text-transform: uppercase; font-weight: 600;
}
.admin-table tr { border-bottom: 1px solid rgba(104, 159, 56, 0.12); transition: background 0.3s; }
.admin-table tbody tr:hover { background: var(--green-100); }
.admin-table .t-title { font-weight: 600; color: var(--ink); }
.admin-table .t-title a { color: inherit; text-decoration: none; }
.admin-table .t-title a:hover { color: var(--green-600); }
.badge { display: inline-block; font-size: 11px; padding: 3px 12px; border-radius: 20px; letter-spacing: 1px; }
.badge-pub { background: #e8f5e9; color: #2e7d32; }
.badge-draft { background: #fff3e0; color: #e65100; }
.row-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.editor-card {
  background: rgba(255, 255, 255, 0.92); border-radius: var(--radius);
  border: 1px solid rgba(104, 159, 56, 0.22); box-shadow: 0 10px 30px var(--shadow);
  padding: 34px; margin-top: 24px;
}
.editor-card h2 { font-family: var(--serif); color: var(--green-800); margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

/* ===== 关于页 ===== */
.about-card {
  background: rgba(255, 255, 255, 0.9); border-radius: var(--radius);
  border: 1px solid rgba(104, 159, 56, 0.22); box-shadow: 0 10px 30px var(--shadow);
  padding: 40px;
}
.about-card h2 { font-family: var(--serif); color: var(--green-800); margin: 22px 0 10px; }
.about-card p { font-size: 15px; line-height: 2; color: var(--ink-soft); }
.about-card .intro { text-align: center; margin-bottom: 10px; }
.about-card .avatar { font-size: 56px; }
.about-card ul { margin: 8px 0 8px 22px; }

/* ===== 页脚 ===== */
.site-footer {
  position: relative; z-index: 2; text-align: center;
  color: var(--green-400); font-size: 13px; letter-spacing: 2px; padding: 18px 20px 28px;
}

/* ===== 入场动画 ===== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

.loading { text-align: center; color: var(--ink-faint); padding: 40px 0; }
.loading .spin {
  display: inline-block; width: 34px; height: 34px; border-radius: 50%;
  border: 3px solid var(--green-200); border-top-color: var(--green-500);
  animation: spin 0.9s linear infinite; margin-bottom: 12px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== 导航用户信息 ===== */
.nav-user { font-size: 13px; color: var(--green-800); font-weight: 600; letter-spacing: 1px; margin-right: 8px; }
.site-nav .nav-btn.ghost { background: transparent; border: 1.5px solid var(--green-400); color: var(--green-600); }
.site-nav .nav-btn.ghost:hover { background: var(--green-100); color: var(--green-800); }

/* ===== 照片画廊 ===== */
.gallery {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px; margin: 24px 0;
}
.gallery .photo { border-radius: 14px; overflow: hidden; cursor: zoom-in; position: relative; }
.gallery .photo img {
  width: 100%; height: 180px; object-fit: cover; display: block;
  transition: transform 0.5s ease;
}
.gallery .photo:hover img { transform: scale(1.08); }
.gallery .photo .p-name {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 18px 10px 8px;
  font-size: 12px; color: #fff; background: linear-gradient(transparent, rgba(0,0,0,.6));
  opacity: 0; transition: opacity .3s;
}
.gallery .photo:hover .p-name { opacity: 1; }

/* 灯箱预览 */
.lightbox {
  position: fixed; inset: 0; z-index: 100; background: rgba(0,0,0,.88);
  display: grid; place-items: center; cursor: zoom-out; padding: 30px;
}
.lightbox img { max-width: 92vw; max-height: 86vh; border-radius: 10px; box-shadow: 0 20px 60px rgba(0,0,0,.5); }

/* ===== 附件下载列表 ===== */
.files-box { margin: 20px 0 26px; }
.files-box .f-title { font-size: 13px; color: var(--green-700); letter-spacing: 2px; margin-bottom: 10px; }
.file-item {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px; margin: 8px 0;
  background: var(--green-100); border: 1px dashed var(--green-300); border-radius: 12px;
  text-decoration: none; color: var(--green-800); font-size: 14px;
  transition: all 0.3s;
}
.file-item:hover { background: var(--green-200); transform: translateX(4px); }
.file-item .f-ico { font-size: 20px; }
.file-item .f-name { flex: 1; word-break: break-all; }
.file-item .f-meta { font-size: 12px; color: var(--ink-faint); }

/* ===== 评论区 ===== */
.comments { margin-top: 40px; }
.c-title { font-family: var(--serif); color: var(--green-800); font-size: 20px; margin-bottom: 16px; }
.c-count { color: var(--ink-faint); font-size: 14px; }
.c-list { display: grid; gap: 12px; }
.comment-item {
  background: rgba(255,255,255,.75); border: 1px solid rgba(104,159,56,.18);
  border-radius: 14px; padding: 14px 18px;
}
.c-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.c-name { font-size: 13px; font-weight: 700; color: var(--green-700); }
.c-time { font-size: 11px; color: var(--ink-faint); flex: 1; }
.c-del {
  border: 1px solid #e57373; background: transparent; color: #e57373;
  font-size: 11px; padding: 3px 10px; border-radius: 20px; cursor: pointer; transition: all .25s;
  font-family: inherit;
}
.c-del:hover { background: #e57373; color: #fff; }
.c-body p { font-size: 14px; line-height: 1.9; color: var(--ink-soft); word-break: break-word; }
.c-empty { text-align: center; color: var(--ink-faint); font-size: 13px; padding: 14px 0; }
.c-login-tip { text-align: center; color: var(--ink-soft); font-size: 14px; padding: 16px; }
.c-login-tip a { color: var(--green-600); }
.comment-form { margin-top: 18px; }
.comment-form textarea {
  width: 100%; padding: 12px 14px; font-size: 14px; font-family: inherit; resize: vertical;
  border: 1.5px solid var(--green-200); border-radius: 12px; background: #fbfdf7; color: var(--ink);
  transition: border-color .3s, box-shadow .3s;
}
.comment-form textarea:focus { outline: none; border-color: var(--green-500); box-shadow: 0 0 0 3px rgba(104,159,56,.15); }
.c-form-row { display: flex; align-items: center; gap: 14px; margin-top: 10px; flex-wrap: wrap; }
.c-hint { font-size: 12px; color: var(--ink-faint); }

/* ===== 上传组件（后台） ===== */
.upload-box {
  border: 2px dashed var(--green-300); border-radius: 14px; padding: 16px;
  background: var(--green-100); margin-bottom: 12px;
}
.upload-box .up-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.up-grid { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 12px; }
.up-item { position: relative; border-radius: 10px; overflow: hidden; background: #fff; }
.up-item img { width: 90px; height: 90px; object-fit: cover; display: block; }
.up-item .f-row {
  display: flex; align-items: center; gap: 8px; padding: 6px 10px; font-size: 12px;
  border: 1px solid var(--green-200); border-radius: 8px; background: #fff; color: var(--green-800);
}
.up-del {
  position: absolute; top: 4px; right: 4px; width: 22px; height: 22px; border-radius: 50%;
  border: none; background: rgba(0,0,0,.55); color: #fff; cursor: pointer; font-size: 12px; line-height: 1;
}
.up-del:hover { background: #c62828; }
.up-progress { font-size: 12px; color: var(--ink-faint); }