/* ============================================================
   朋友圈动态模块 · 纸墨编辑风
   与主站同一套语言：宣纸底 + 墨字 + 朱砂点缀 + 衬线标题 + 发丝线
   变量沿用旧名（--m-*），后台管理页样式保持原样可用
   ============================================================ */
:root {
  --m-ink: #f6f2e9;        /* 页面底色（宣纸） */
  --m-panel: #fbf8f0;      /* 卡片底色 */
  --m-line: #ddd6c3;       /* 发丝线 */
  --m-text: #262219;       /* 正文 */
  --m-mist: #5c564a;       /* 次级文字 */
  --m-faint: #948c7c;      /* 更弱文字 */
  --m-aqua: #b8432f;       /* 唯一强调色（朱砂，沿用旧变量名） */
  --m-aqua-deep: #933426;
  --m-radius: 2px;         /* 直角，编辑风 */
  --m-serif: 'Noto Serif SC Variable', 'Noto Serif SC', 'Songti SC', 'STSong', 'SimSun', serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --m-ink: #191612;
    --m-panel: #201c16;
    --m-line: #37312a;
    --m-text: #e6dfcd;
    --m-mist: #a89f8c;
    --m-faint: #736b5b;
    --m-aqua: #cf6a4f;
    --m-aqua-deep: #e08263;
  }
  /* 后台是私人工具，保持亮色可读 */
  body.adm {
    --m-ink: #f8fafc; --m-panel: #ffffff; --m-line: #e9edf3;
    --m-text: #334155; --m-mist: #64748b; --m-faint: #94a3b8;
    --m-aqua: #06b6d4; --m-aqua-deep: #0891b2;
  }
}

/* ---------- 页面骨架 ---------- */
.mpage {
  margin: 0; min-height: 100vh;
  background: var(--m-ink); color: var(--m-text);
  font-family: "Noto Sans SC Variable", "Noto Sans SC", sans-serif;
  line-height: 1.85; letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
}
.mpage a { color: inherit; text-decoration: none; }

/* 纸张颗粒 */
.mpage::after {
  content: ''; position: fixed; inset: 0; z-index: 70; pointer-events: none;
  opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.mtop {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--m-ink) 86%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--m-line);
}
.mtop-in {
  max-width: 720px; margin: 0 auto; padding: 0 20px;
  height: 58px; display: flex; align-items: center; justify-content: space-between;
}
.mtop-title {
  font-family: var(--m-serif); font-weight: 700;
  font-size: 17px; letter-spacing: .22em;
}
.mtop-title em { font-style: normal; color: var(--m-aqua); }
.mtop-nav { display: flex; gap: 20px; font-size: 13.5px; letter-spacing: .18em; color: var(--m-mist); }
.mtop-nav a { position: relative; padding: 4px 0; transition: color .3s; }
.mtop-nav a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--m-aqua);
  transform: scaleX(0); transform-origin: right;
  transition: transform .35s cubic-bezier(.22, 1, .36, 1);
}
.mtop-nav a:hover { color: var(--m-text); }
.mtop-nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.mwrap { max-width: 680px; margin: 0 auto; padding: 56px 20px 120px; }

/* 页首 */
.mhero { margin-bottom: 52px; }
.mhero h1 {
  font-family: var(--m-serif); font-weight: 900;
  font-size: clamp(34px, 7vw, 46px);
  letter-spacing: .14em; line-height: 1.3; margin: 0;
}
.mhero p {
  margin: 14px 0 0; font-size: 12.5px;
  color: var(--m-faint); letter-spacing: .3em;
  padding-bottom: 18px; border-bottom: 1px solid var(--m-line);
}

/* ---------- 动态卡片 ---------- */
#m-list { display: flex; flex-direction: column; }
#m-sentinel { height: 1px; }

.mcard {
  position: relative;
  background: var(--m-panel);
  border: 1px solid var(--m-line);
  border-radius: var(--m-radius);
  padding: 22px 22px 20px;
  margin-bottom: 18px;
  scroll-margin: 120px 0;
  transition: border-color .3s ease;
}
.mcard:hover { border-color: color-mix(in srgb, var(--m-text) 24%, var(--m-line)); }
.mcard.flash { animation: mflash 1.6s ease-out 1; }
@keyframes mflash {
  0%   { box-shadow: inset 0 0 0 1.5px var(--m-aqua); background: color-mix(in srgb, var(--m-aqua) 7%, var(--m-panel)); }
  100% { box-shadow: inset 0 0 0 0 transparent; }
}

.mcard-head { display: flex; align-items: center; gap: 12px; }
.mcard-avatar {
  position: relative; width: 40px; height: 40px; flex: none;
  border-radius: 50%; overflow: hidden;
  border: 1px solid var(--m-line);
  background: var(--m-aqua);
}
.mcard-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.mcard-avatar i {
  display: none; position: absolute; inset: 0;
  align-items: center; justify-content: center;
  font-style: normal; color: #f8f2e4;
  font-family: var(--m-serif); font-weight: 700; font-size: 17px;
}
.mcard-avatar.no-img img { display: none; }
.mcard-avatar.no-img i { display: flex; }
.mcard-meta { display: flex; flex-direction: column; min-width: 0; }
.mcard-author { font-family: var(--m-serif); font-weight: 700; font-size: 14.5px; letter-spacing: .1em; }
.mcard-time { font-size: 11.5px; color: var(--m-faint); letter-spacing: .12em; }
.mcard-private {
  margin-left: 8px; font-size: 11px; color: var(--m-aqua);
  border: 1px solid color-mix(in srgb, var(--m-aqua) 45%, transparent);
  padding: 1px 8px; border-radius: 2px; letter-spacing: .1em;
}
.mcard-share {
  margin-left: auto; flex: none;
  font-size: 11.5px; letter-spacing: .2em; color: var(--m-faint);
  border: 1px solid transparent; padding: 3px 8px;
  transition: color .3s, border-color .3s;
}
.mcard-share:hover { color: var(--m-aqua); border-color: color-mix(in srgb, var(--m-aqua) 40%, transparent); }

.mcard-text { margin: 14px 0 0; font-size: 15px; line-height: 1.95; word-break: break-word; }
.mlink { color: var(--m-aqua); border-bottom: 1px solid color-mix(in srgb, var(--m-aqua) 35%, transparent); }
.mlink:hover { border-bottom-color: var(--m-aqua); }

/* 图片网格：1 图大单张 / 2·4 图双列 / 其余三列 */
.mcard-imgs { display: grid; gap: 5px; margin-top: 14px; }
.mcard-imgs img {
  width: 100%; height: 100%; object-fit: cover; cursor: zoom-in;
  border: 1px solid var(--m-line); border-radius: var(--m-radius);
  transition: opacity .25s ease;
}
.mcard-imgs img:hover { opacity: .92; }
.mgrid-1 { grid-template-columns: 1fr; }
.mgrid-1 img { max-height: 420px; width: auto; max-width: 100%; }
.mgrid-2 { grid-template-columns: 1fr 1fr; }
.mgrid-2 img { aspect-ratio: 1; }
.mgrid-3 { grid-template-columns: repeat(3, 1fr); }
.mgrid-3 img { aspect-ratio: 1; }

/* 视频：封面占位，点击弹窗播放 */
.mcard-video {
  width: 100%; margin-top: 14px;
  aspect-ratio: 16 / 9;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  background:
    repeating-linear-gradient(-45deg, color-mix(in srgb, var(--m-line) 38%, transparent) 0 8px, transparent 8px 16px),
    color-mix(in srgb, var(--m-line) 24%, var(--m-panel));
  border: 1px solid var(--m-line); border-radius: var(--m-radius);
  cursor: pointer; transition: border-color .3s;
}
.mcard-video:hover { border-color: var(--m-aqua); }
.mcard-video-play {
  width: 52px; height: 52px; border-radius: 50%;
  border: 1px solid var(--m-text); color: var(--m-text);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; padding-left: 3px;
  transition: background-color .3s, color .3s, border-color .3s;
}
.mcard-video:hover .mcard-video-play { background: var(--m-aqua); border-color: var(--m-aqua); color: #f8f2e4; }
.mcard-video-tip { font-size: 12px; letter-spacing: .25em; color: var(--m-mist); }

/* 入场：由 moments-core reveal() 添加类驱动（无 GSAP） */
.mreveal { opacity: 0; transform: translateY(16px); transition: opacity .7s cubic-bezier(.22,1,.36,1), transform .7s cubic-bezier(.22,1,.36,1); }
.mreveal.mr-in { opacity: 1; transform: none; }

/* 空状态 / 加载状态 */
.mempty { text-align: center; padding: 72px 0; color: var(--m-faint); }
.mempty .mempty-icon { display: none; }
.mempty p { letter-spacing: .25em; font-size: 13.5px; }
.mstate { text-align: center; color: var(--m-faint); font-size: 12.5px; letter-spacing: .3em; padding: 26px 0 0; }

/* 页脚 */
.mfoot {
  max-width: 680px; margin: 0 auto;
  padding: 26px 20px 60px;
  border-top: 1px solid var(--m-line);
  display: flex; justify-content: space-between; gap: 16px;
  font-size: 12.5px; letter-spacing: .2em; color: var(--m-faint);
}
.mfoot a { transition: color .3s; }
.mfoot a:hover { color: var(--m-aqua); }

/* 归档页：年月筛选 + 分组标题 */
.mchips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 34px; }
.mchip {
  font-size: 12.5px; letter-spacing: .12em; color: var(--m-mist);
  border: 1px solid var(--m-line); background: transparent;
  padding: 5px 14px; border-radius: 2px; cursor: pointer;
  transition: color .3s, border-color .3s, background-color .3s;
}
.mchip:hover { color: var(--m-text); border-color: var(--m-text); }
.mchip.on { background: var(--m-text); border-color: var(--m-text); color: var(--m-ink); }
.mgroup-title {
  display: flex; align-items: baseline; gap: 12px;
  font-family: var(--m-serif); font-weight: 900;
  font-size: 21px; letter-spacing: .12em;
  margin: 40px 0 18px;
}
.mgroup-title small { font-family: "Noto Sans SC Variable", sans-serif; font-weight: 400; font-size: 12px; color: var(--m-faint); letter-spacing: .2em; }
.mgroup-title::after { content: ''; flex: 1; border-bottom: 1px solid var(--m-line); transform: translateY(-4px); }

/* ---------- 图片灯箱（观看图片，恒为暗场） ---------- */
#m-lightbox {
  position: fixed; inset: 0; z-index: 200;
  display: none; align-items: center; justify-content: center;
  background: rgba(14, 12, 9, .94);
}
#m-lightbox.open { display: flex; }
.mlb-img {
  max-width: 92vw; max-height: 86vh;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .5);
}
.mlb-close, .mlb-prev, .mlb-next {
  position: absolute; z-index: 2;
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  color: rgba(246, 242, 233, .8);
  font-size: 26px; line-height: 1;
  transition: color .25s;
  background: none; border: none; cursor: pointer;
}
.mlb-close, .mlb-prev, .mlb-next:hover { color: #f6f2e9; }
.mlb-close { top: 14px; right: 18px; }
.mlb-prev { left: 14px; top: 50%; transform: translateY(-50%); }
.mlb-next { right: 14px; top: 50%; transform: translateY(-50%); }
.mlb-count {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  color: rgba(246, 242, 233, .65); font-size: 12px; letter-spacing: .3em;
  font-family: ui-monospace, Consolas, monospace;
}

/* ---------- 视频弹窗 ---------- */
#m-videomodal {
  position: fixed; inset: 0; z-index: 200;
  display: none; align-items: center; justify-content: center;
  background: rgba(14, 12, 9, .94);
}
#m-videomodal.open { display: flex; }
.mvm-box { position: relative; width: min(880px, 92vw); }
.mvm-box video { width: 100%; max-height: 80vh; display: block; background: #000; }
.mvm-close {
  position: absolute; top: -44px; right: 0;
  color: rgba(246, 242, 233, .8); font-size: 24px;
  background: none; border: none; cursor: pointer;
}
.mvm-close:hover { color: #f6f2e9; }

/* ---------- 轻提示 / 滚动锁定 ---------- */
#m-toast {
  position: fixed; left: 50%; bottom: 34px; transform: translate(-50%, 14px);
  z-index: 210; opacity: 0; pointer-events: none;
  background: var(--m-text); color: var(--m-ink);
  font-size: 13px; letter-spacing: .12em;
  padding: 9px 20px; border-radius: 2px;
  transition: opacity .3s ease, transform .3s cubic-bezier(.22,1,.36,1);
}
#m-toast.show { opacity: 1; transform: translate(-50%, 0); }
body.m-lock { overflow: hidden; }

/* ---------- 全局背景音乐按钮 ---------- */
.bgm-global-btn {
  position: fixed; bottom: 22px; right: 22px; z-index: 80;
  width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--m-line); background: var(--m-panel); color: var(--m-mist);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: color .3s, border-color .3s, background-color .3s, transform .3s cubic-bezier(.22,1,.36,1);
}
.bgm-global-btn:hover { color: var(--m-aqua); border-color: var(--m-aqua); transform: scale(1.06); }
.bgm-global-btn.bgm-playing { background: var(--m-aqua); border-color: var(--m-aqua); color: #f8f2e4; }

/* ---------- 管理后台（保持原有样式不变） ---------- */
.adm-login {
  max-width: 340px; margin: 12vh auto 0; background: var(--m-panel);
  border: 1px solid var(--m-line); border-radius: var(--m-radius);
  padding: 34px 30px; text-align: center;
}
.adm-login h1 { font-size: 19px; margin: 0 0 6px; }
.adm-login p { color: var(--m-faint); font-size: 12.5px; margin: 0 0 22px; }
.adm-login input {
  width: 100%; box-sizing: border-box; border: 1px solid var(--m-line);
  border-radius: 4px; padding: 11px 14px; font-size: 14px; margin-bottom: 12px;
  outline: none; transition: border-color .2s; background: var(--m-ink); color: var(--m-text);
}
.adm-login input:focus { border-color: var(--m-aqua); }
.adm-btn {
  display: inline-block; border: none; cursor: pointer; border-radius: 4px;
  background: var(--m-aqua);
  color: #f8f2e4; font-size: 14px; font-weight: 700; letter-spacing: .08em;
  padding: 11px 26px; transition: opacity .2s, transform .15s;
}
.adm-btn:hover { opacity: .9; }
.adm-btn:active { transform: scale(.97); }
.adm-btn.block { width: 100%; }
.adm-btn.ghost { background: var(--m-panel); color: var(--m-mist); border: 1px solid var(--m-line); }
.adm-btn.sm { padding: 6px 14px; font-size: 12.5px; font-weight: 400; }
.adm-btn.danger { background: var(--m-panel); color: #f43f5e; border: 1px solid color-mix(in srgb, #f43f5e 35%, transparent); }
.adm-err { color: #f43f5e; font-size: 12.5px; min-height: 18px; margin: 8px 0 0; }

.adm-section {
  background: var(--m-panel); border: 1px solid var(--m-line);
  border-radius: var(--m-radius); padding: 22px; margin-bottom: 22px;
}
.adm-section h2 { margin: 0 0 16px; font-size: 16px; font-weight: 900; }
.adm-section h2 small { font-weight: 400; color: var(--m-faint); font-size: 12px; margin-left: 8px; }
.adm-field { margin-bottom: 14px; }
.adm-field label { display: block; font-size: 13px; color: var(--m-mist); margin-bottom: 6px; }
.adm-field textarea, .adm-field input[type="text"], .adm-field input[type="url"] {
  width: 100%; box-sizing: border-box; border: 1px solid var(--m-line);
  border-radius: 4px; padding: 10px 13px; font-size: 14px; font-family: inherit;
  outline: none; resize: vertical; transition: border-color .2s;
  background: var(--m-ink); color: var(--m-text);
}
.adm-field textarea:focus, .adm-field input:focus { border-color: var(--m-aqua); }
.adm-check { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--m-text); }
.adm-check input { width: 16px; height: 16px; accent-color: var(--m-aqua); }
.adm-files { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.adm-files img { width: 64px; height: 64px; object-fit: cover; border-radius: 3px; border: 1px solid var(--m-line); }
.adm-hint { font-size: 12px; color: var(--m-faint); line-height: 1.7; margin-top: 8px; }
.adm-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.adm-actions { display: flex; gap: 8px; margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--m-line); }
.adm-status { font-size: 12.5px; color: var(--m-mist); margin-top: 12px; }
.adm-status.ok { color: #059669; }
.adm-status.warn { color: #d97706; }
.adm-topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.adm-topbar h1 { font-size: 18px; margin: 0; }
.adm-topbar .adm-topbar-links { display: flex; gap: 12px; font-size: 13px; }
.adm-topbar a { color: var(--m-mist); text-decoration: none; }
.adm-topbar a:hover { color: var(--m-aqua); }

/* ---------- 响应式微调 ---------- */
@media (max-width: 480px) {
  .mwrap { padding: 40px 16px 110px; }
  .mcard { padding: 18px 16px 16px; }
  .mcard-text { font-size: 15px; }
  .mgrid-1 img { max-height: 320px; }
  .mlb-prev { left: 6px; }
  .mlb-next { right: 6px; }
  .adm-section { padding: 18px 16px; }
}

/* 降低动态效果偏好 */
@media (prefers-reduced-motion: reduce) {
  .mcard.flash { animation: none; }
  .mreveal { opacity: 1; transform: none; transition: none; }
}