/* ==========================================================================
   杜鹃树洞 · 前台样式
   默认杜鹃紫渐变，可选暖杏 / 青瓷 / 雾蓝 / 深夜护眼背景
   ========================================================================== */

/* ---------------- 设计令牌 ---------------- */
:root {
  /* 表面 */
  --paper:      #f5eafa;
  --paper-2:    #dfc8eb;
  --card:       #fdfbfe;
  --card-hi:    #ffffff;
  --line:       #ded0e4;
  --line-soft:  #ece3f0;
  --bg-glow-1:  rgba(102, 8, 116, .26);
  --bg-glow-2:  rgba(168, 102, 184, .3);

  /* 文字 */
  --ink:        #312938;
  --ink-2:      #6f6375;
  --ink-3:      #9a8ea0;

  /* 杜鹃花色 */
  --rose:       #7d2a8a;
  --rose-deep:  #660874;
  --rose-mid:   #b994c2;
  --rose-soft:  #eadced;
  --rose-tint:  #f1e8f4;

  /* 辅助 */
  --leaf:       #7e9174;
  --amber:      #b6884a;

  /* 形状与阴影 */
  --r-lg: 22px;
  --r-md: 16px;
  --r-sm: 10px;
  --shadow-1: 0 1px 2px rgba(66, 31, 72, .06);
  --shadow-2: 0 1px 2px rgba(66, 31, 72, .06), 0 10px 30px -12px rgba(66, 31, 72, .18);
  --shadow-3: 0 2px 4px rgba(66, 31, 72, .08), 0 22px 48px -18px rgba(66, 31, 72, .3);
  --ring: 0 0 0 3px rgba(102, 8, 116, .2);

  --maxw: 720px;

  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC",
               "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong",
                "SimSun", Georgia, serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  color-scheme: light;
}

[data-theme="warm"] {
  --paper:#faf6f0; --paper-2:#f1e7db; --card:#fffdf9; --card-hi:#fff;
  --line:#eadcca; --line-soft:#f2e8dc; --ink:#39312a; --ink-2:#74675d; --ink-3:#9b8e83;
  --rose:#a95d68; --rose-deep:#87434f; --rose-mid:#d49aa1; --rose-soft:#f3e2df; --rose-tint:#fbf1ed;
  --bg-glow-1:rgba(183,132,82,.16); --bg-glow-2:rgba(218,177,139,.2);
  --ring:0 0 0 3px rgba(169,93,104,.2);
}

[data-theme="sage"] {
  --paper:#f1f5ed; --paper-2:#e4ecdd; --card:#fbfdf9; --card-hi:#fff;
  --line:#d5e0ce; --line-soft:#e7eee2; --ink:#2f392e; --ink-2:#657063; --ink-3:#8d998a;
  --rose:#688264; --rose-deep:#4d674a; --rose-mid:#9eb39a; --rose-soft:#dfe9da; --rose-tint:#edf3e9;
  --bg-glow-1:rgba(87,118,81,.16); --bg-glow-2:rgba(163,185,154,.2);
  --ring:0 0 0 3px rgba(77,103,74,.2);
}

[data-theme="blue"] {
  --paper:#f0f5f7; --paper-2:#e1eaee; --card:#fbfdfe; --card-hi:#fff;
  --line:#d1dfe5; --line-soft:#e5edf0; --ink:#2d373c; --ink-2:#617078; --ink-3:#87979f;
  --rose:#5e7f8e; --rose-deep:#426776; --rose-mid:#94afba; --rose-soft:#dce8ec; --rose-tint:#eaf1f4;
  --bg-glow-1:rgba(71,111,129,.16); --bg-glow-2:rgba(148,175,186,.2);
  --ring:0 0 0 3px rgba(66,103,118,.2);
}

[data-theme="dark"] {
  --paper:      #15131a;
  --paper-2:    #1c1922;
  --card:       #201d28;
  --card-hi:    #262231;
  --line:       #2f2a39;
  --line-soft:  #262231;

  --ink:        #e3dbd7;
  --ink-2:      #9a908a;
  --ink-3:      #6d645f;

  --rose:       #d68d97;
  --rose-deep:  #e6a9b1;
  --rose-mid:   #b2707c;
  --rose-soft:  #33232c;
  --rose-tint:  #241f2b;
  --bg-glow-1:  rgba(102, 8, 116, .28);
  --bg-glow-2:  rgba(125, 42, 138, .16);

  --leaf:       #93a888;
  --amber:      #cfa262;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, .3);
  --shadow-2: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px -12px rgba(0, 0, 0, .55);
  --shadow-3: 0 2px 4px rgba(0, 0, 0, .35), 0 22px 48px -18px rgba(0, 0, 0, .7);
  --ring: 0 0 0 3px rgba(214, 141, 151, .26);

  color-scheme: dark;
}

/* ---------------- 基础 ---------------- */
* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--paper);
  background-image:
    radial-gradient(1100px 620px at 92% -8%, var(--bg-glow-1), transparent 66%),
    radial-gradient(980px 600px at -12% 8%, var(--bg-glow-2), transparent 62%),
    linear-gradient(145deg, var(--paper) 0%, var(--paper-2) 52%, var(--paper) 100%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15.5px;
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

::selection { background: var(--rose-soft); color: var(--rose-deep); }

:focus-visible { outline: none; box-shadow: var(--ring); border-radius: 8px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px 100px; }
.hidden { display: none !important; }
.spacer { flex: 1; }

/* ---------------- 顶栏 ---------------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(1.5) blur(14px);
  -webkit-backdrop-filter: saturate(1.5) blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.topbar-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; gap: 10px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand .mark { width: 30px; height: 30px; flex: none; display: block; }
.brand .name {
  font-family: var(--font-serif);
  font-size: 19px; font-weight: 600; letter-spacing: .09em;
}
.brand .tag {
  font-size: 12px; color: var(--ink-3); letter-spacing: 0; margin-left: 2px;
  border-left: 1px solid var(--line); padding-left: 10px;
}

.pill {
  border: 1px solid var(--line); background: var(--card); color: var(--ink-2);
  border-radius: 999px; padding: 6px 14px; font-size: 13px; line-height: 1.4;
  cursor: pointer; font-family: inherit; white-space: nowrap;
  transition: background .18s, color .18s, border-color .18s, transform .18s;
  display: inline-flex; align-items: center; gap: 6px;
}
.pill:hover { background: var(--card-hi); color: var(--ink); border-color: var(--rose-mid); transform: translateY(-1px); }
.pill:active { transform: translateY(0); }
.pill .ico { width: 15px; height: 15px; flex: none; }
svg.ico { display: block; }
.theme-select { max-width: 108px; padding-right: 28px; appearance: auto; }

/* ---------------- 发布区 ---------------- */
.composer {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
  padding: 26px 26px 22px;
  margin: 30px 0 24px;
  overflow: hidden;
}
.composer::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--rose), var(--rose-mid) 45%, transparent);
  opacity: .85;
}
.composer h1 {
  font-family: var(--font-serif);
  font-size: 22px; font-weight: 600; margin: 0 0 6px; letter-spacing: .03em;
}
.composer .sub { color: var(--ink-3); font-size: 13px; margin: 0 0 18px; }

textarea, input[type="text"], input[type="password"], input[type="search"] {
  width: 100%; font-family: inherit; font-size: 15px; color: var(--ink);
  background: var(--paper-2); border: 1px solid transparent; border-radius: var(--r-md);
  padding: 15px 17px; line-height: 1.8; resize: vertical; outline: none;
  transition: background .18s, border-color .18s, box-shadow .18s;
}
textarea:focus, input:focus {
  border-color: var(--rose-mid); background: var(--card); box-shadow: var(--ring);
}
textarea { min-height: 140px; }
textarea::placeholder, input::placeholder { color: var(--ink-3); }

.composer-foot { display: flex; align-items: center; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.counter { color: var(--ink-3); font-size: 12.5px; font-variant-numeric: tabular-nums; }
.counter.over { color: var(--rose-deep); font-weight: 600; }

.captcha-row { display: flex; align-items: center; gap: 10px; }
.captcha-row img {
  height: 42px; width: 124px; object-fit: cover; border-radius: var(--r-sm);
  border: 1px solid var(--line); cursor: pointer; background: #f6f1e7;
  transition: border-color .18s;
}
.captcha-row img:hover { border-color: var(--rose-mid); }
.captcha-row input { width: 88px; padding: 10px 12px; text-align: center; letter-spacing: .08em; }

.btn {
  border: 1px solid transparent; border-radius: 999px;
  padding: 11px 26px; font-size: 14.5px; font-weight: 500; font-family: inherit;
  cursor: pointer; background: var(--rose); color: #fff;
  box-shadow: 0 1px 2px rgba(164, 82, 95, .2), 0 6px 16px -8px rgba(164, 82, 95, .5);
  transition: background .18s, transform .18s, box-shadow .18s, opacity .18s;
}
.btn:hover { background: var(--rose-deep); transform: translateY(-1px); box-shadow: 0 2px 4px rgba(164,82,95,.22), 0 12px 24px -10px rgba(164,82,95,.55); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; }
.btn.ghost {
  background: transparent; color: var(--ink-2); border-color: var(--line); box-shadow: none;
}
.btn.ghost:hover { background: var(--paper-2); color: var(--ink); border-color: var(--rose-mid); }
.btn.small { padding: 8px 18px; font-size: 13.5px; }

[data-theme="dark"] .btn { color: #241b1f; }
[data-theme="dark"] .btn.ghost { color: var(--ink-2); }

.notice {
  font-size: 12.5px; color: var(--ink-3); line-height: 1.75;
  margin: 18px 0 0; padding: 14px 16px;
  background: var(--rose-tint); border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
}
.notice strong { color: var(--ink-2); font-weight: 600; }

/* ---------------- 工具栏：分段控件 + 搜索 ---------------- */
.toolbar { display: flex; align-items: center; gap: 10px; margin: 26px 0 16px; flex-wrap: wrap; }

.segment {
  display: inline-flex; padding: 3px; gap: 2px;
  background: var(--paper-2); border: 1px solid var(--line-soft); border-radius: 999px;
}
.tab {
  border: none; background: transparent; color: var(--ink-3); font-family: inherit;
  font-size: 14px; padding: 6px 18px; border-radius: 999px; cursor: pointer;
  transition: background .2s, color .2s, box-shadow .2s;
}
.tab:hover { color: var(--ink-2); }
.tab.active {
  background: var(--card); color: var(--rose-deep); font-weight: 600;
  box-shadow: var(--shadow-1);
}

.search-box { position: relative; flex: 1; min-width: 170px; }
.search-box input { padding: 9px 16px 9px 38px; font-size: 14px; border-radius: 999px; background: var(--card); border-color: var(--line); }
.search-box .ico {
  position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
  width: 15px; height: 15px; color: var(--ink-3); pointer-events: none;
}

/* ---------------- 内容卡片 ---------------- */
.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 20px 22px 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-1);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  animation: rise .42s cubic-bezier(.22, .68, .36, 1) both;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); border-color: var(--rose-mid); }
.card.full { animation: none; }
.card.full:hover { transform: none; box-shadow: var(--shadow-2); }

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }

.avatar {
  width: 32px; height: 32px; flex: none; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .3);
}
.avatar svg { width: 58%; height: 58%; opacity: .62; }
.avatar.sm svg { width: 62%; height: 62%; }
.anon-name { font-size: 13.5px; color: var(--ink-2); font-weight: 500; }
.badge {
  font-size: 11px; line-height: 18px; padding: 0 9px; border-radius: 999px;
  background: var(--rose-soft); color: var(--rose-deep); white-space: nowrap;
}
.badge.leaf { background: color-mix(in srgb, var(--leaf) 18%, transparent); color: var(--leaf); }
.badge.pin {
  background: var(--rose); color: #fff; font-weight: 500; letter-spacing: .04em;
}
[data-theme="dark"] .badge.pin { color: #241b1f; }

/* 置顶卡片：只做很轻的区分，不打破整体安静的调子 */
.card.pinned { border-color: var(--rose-mid); }
.card.pinned::before {
  content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 3px;
  border-radius: 0 3px 3px 0; background: var(--rose); opacity: .75;
}
.time { font-size: 12.5px; color: var(--ink-3); margin-left: auto; white-space: nowrap; }

.content {
  white-space: pre-wrap; word-break: break-word; overflow-wrap: anywhere;
  font-size: 15.5px; line-height: 1.9; color: var(--ink);
}
.card .content { max-height: 21em; overflow: hidden; -webkit-mask-image: none; }
.card.clipped .content {
  -webkit-mask-image: linear-gradient(180deg, #000 76%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 76%, transparent 100%);
}
.card.full .content { max-height: none; font-size: 16px; }

.card-foot { display: flex; align-items: center; gap: 2px; margin-top: 14px; flex-wrap: wrap; }
.act {
  border: none; background: transparent; color: var(--ink-3); font-family: inherit;
  font-size: 13px; padding: 6px 11px; border-radius: 999px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  transition: background .16s, color .16s;
}
.act:hover { background: var(--paper-2); color: var(--ink-2); }
.act .ico { width: 15px; height: 15px; }
.act .num { font-variant-numeric: tabular-nums; }
.act.on { color: var(--rose); }
.act.on:hover { background: var(--rose-soft); }
.act.on .ico { animation: pop .32s ease; }
@keyframes pop { 0% { transform: scale(1); } 45% { transform: scale(1.32); } 100% { transform: scale(1); } }

/* ---------------- 评论 ---------------- */
.comments { margin-top: 30px; }
#skeleton, #detail { margin-top: 26px; }
.comment-list .empty { padding: 34px 20px; }
.comment-list .empty p { margin: 2px 0; }
.section-title {
  display: flex; align-items: center;
  font-size: 13.5px; color: var(--ink-2); font-weight: 600; margin: 30px 0 14px;
  letter-spacing: .04em;
}
.section-title::after {
  content: ""; flex: 1; height: 1px; background: var(--line); margin-left: 14px;
}

.comment-list {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 4px 20px; box-shadow: var(--shadow-1);
}
.comment {
  border-top: 1px solid var(--line-soft); padding: 15px 0;
  animation: rise .38s cubic-bezier(.22, .68, .36, 1) both;
}
.avatar.sm { width: 26px; height: 26px; font-size: 10px; }
.comment:first-child { border-top: none; }
.comment .content { font-size: 14.8px; line-height: 1.85; }
.comment .avatar { width: 26px; height: 26px; font-size: 10px; }
.comment .card-head { margin-bottom: 8px; }
.comment .card-foot { margin-top: 8px; }
.comment.ai-comment {
  margin: 4px -10px; padding: 15px 10px; border-radius: 12px;
  background: linear-gradient(135deg, var(--rose-soft), transparent 72%);
}
.ai-request {
  display: flex; align-items: center; gap: 10px; margin: -4px 0 12px;
  color: var(--ink-3); font-size: 12px; flex-wrap: wrap;
}

/* ---------------- 骨架屏 / 空状态 ---------------- */
.skeleton { pointer-events: none; }
.sk-line {
  height: 12px; border-radius: 6px; margin: 10px 0;
  background: linear-gradient(90deg, var(--paper-2) 25%, var(--line-soft) 37%, var(--paper-2) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.5s ease infinite;
}
.sk-line.w40 { width: 40%; } .sk-line.w70 { width: 70%; } .sk-line.w90 { width: 90%; }
.sk-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--paper-2); animation: shimmer 1.5s ease infinite;
  background-image: linear-gradient(90deg, var(--paper-2) 25%, var(--line-soft) 37%, var(--paper-2) 63%);
  background-size: 400% 100%;
}
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }

.empty {
  text-align: center; color: var(--ink-3); padding: 56px 20px; font-size: 14px;
}
.empty svg { width: 84px; height: 84px; margin-bottom: 12px; opacity: .8; }
.empty p { margin: 4px 0; }

.loading { text-align: center; color: var(--ink-3); padding: 22px; font-size: 13px; }

/* ---------------- 提示条 ---------------- */
.toast {
  position: fixed; left: 50%; bottom: 42px; z-index: 200;
  transform: translate(-50%, 12px);
  background: var(--ink); color: var(--paper);
  padding: 12px 24px; border-radius: 999px; font-size: 14px;
  box-shadow: var(--shadow-3); max-width: 86vw; text-align: center;
  opacity: 0; pointer-events: none;
  transition: opacity .26s ease, transform .26s cubic-bezier(.2,.7,.3,1);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------------- 弹窗 ---------------- */
.modal-mask {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(48, 34, 32, .34);
  backdrop-filter: blur(5px); -webkit-backdrop-filter: blur(5px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
  animation: fade .2s ease both;
}
.modal-mask.hidden { display: none; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 26px; width: 100%; max-width: 430px; box-shadow: var(--shadow-3);
  animation: zoom .28s cubic-bezier(.2, .8, .3, 1) both;
}
@keyframes zoom { from { opacity: 0; transform: translateY(10px) scale(.97); } to { opacity: 1; transform: none; } }

.modal .modal-icon {
  width: 44px; height: 44px; border-radius: 50%; background: var(--rose-soft);
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
}
.modal .modal-icon svg { width: 22px; height: 22px; color: var(--rose-deep); }
.modal h3 { font-family: var(--font-serif); margin: 0 0 8px; font-size: 18px; font-weight: 600; }
.modal p { margin: 0 0 16px; font-size: 13.5px; color: var(--ink-2); line-height: 1.75; }
.modal-foot { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

.token-box {
  background: var(--paper-2); border: 1px dashed var(--rose-mid); border-radius: var(--r-md);
  padding: 14px 16px; font-family: var(--font-mono); font-size: 12.5px;
  word-break: break-all; color: var(--rose-deep); line-height: 1.7;
}

.reason-list { display: flex; flex-wrap: wrap; gap: 8px; }
.reason {
  border: 1px solid var(--line); background: var(--paper-2); color: var(--ink-2);
  border-radius: 999px; padding: 7px 15px; font-size: 13px; cursor: pointer;
  font-family: inherit; transition: .16s;
}
.reason:hover { border-color: var(--rose-mid); color: var(--ink); }
.reason.sel { background: var(--rose-soft); color: var(--rose-deep); border-color: var(--rose); font-weight: 500; }

/* ---------------- 页脚 ---------------- */
.footer {
  text-align: center; color: var(--ink-3); font-size: 12.5px;
  padding: 44px 20px 24px; line-height: 2;
}
.footer .sep { margin: 0 8px; opacity: .5; }
.footer a { color: var(--ink-2); }
.footer a:hover { color: var(--rose); }
.footer .petal { display: block; margin: 0 auto 12px; width: 22px; height: 22px; opacity: .55; }

/* ---------------- 长文页面 ---------------- */
.prose { font-size: 15px; line-height: 1.95; }
.prose h1 { font-family: var(--font-serif); font-size: 24px; margin: 0 0 4px; }
.prose h2 {
  font-family: var(--font-serif); font-size: 17px; margin: 30px 0 10px;
  padding-left: 12px; border-left: 3px solid var(--rose-mid);
}
.prose p  { color: var(--ink-2); margin: 10px 0; }
.prose strong { color: var(--ink); }
.prose .lead {
  background: var(--rose-tint); border: 1px solid var(--line-soft);
  border-radius: var(--r-md); padding: 16px 18px; color: var(--ink-2);
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 640px) {
  body { font-size: 15px; }
  .wrap { padding: 0 14px 84px; }
  .topbar-inner { padding: 10px 14px; gap: 8px; }
  .brand .name { font-size: 17px; letter-spacing: .06em; }
  .brand .tag { display: none; }
  .composer { padding: 20px 18px 18px; border-radius: 18px; margin-top: 20px; }
  .composer h1 { font-size: 19px; }
  .card { padding: 17px 17px 13px; border-radius: 18px; }
  .comment-list { padding: 2px 16px; border-radius: 18px; }
  .composer-foot { gap: 10px; }
  .composer-foot .spacer { display: none; }
  .captcha-row { width: 100%; }
  .captcha-row img { flex: none; }
  .captcha-row input { flex: 1 1 0; width: auto; min-width: 0; }
  .composer-foot .counter { order: 2; margin-left: auto; }
  .composer-foot .btn { order: 3; }
  .btn { padding: 10px 22px; }
  .toast { bottom: 24px; }
}

@media (max-width: 380px) {
  .captcha-row img { width: 104px; height: 38px; }
  .captcha-row input { width: 70px; }
}