/* 拾见 · 沿用原型的配色：墨绿、纸白、青柠 */
:root {
  --ink: #182018;
  --ink-2: #2c362c;
  --muted: #687268;
  --paper: #fbfbf7;
  --card: #ffffff;
  --line: #e5e9df;
  --line-2: #d3dacb;
  --lime: #d7f44a;
  --on-lime: #182018;
  --green: #1e6e42;
  --green-2: #164f30;
  --soft: #f0f5df;
  --orange: #f28f4b;
  --red: #b4372a;
  --red-soft: #fbeae6;
  --amber: #9a6a12;
  --amber-soft: #fbf1db;
  --ok-soft: #e6f3ea;
  --shadow: 0 1px 2px rgba(24, 32, 24, 0.04), 0 8px 24px rgba(24, 32, 24, 0.06);
  --radius: 10px;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", Georgia, serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #e8eee3;
    --ink-2: #cfd8ca;
    --muted: #98a396;
    --paper: #111511;
    --card: #181e18;
    --line: #273027;
    --line-2: #354035;
    --green: #7fcf9a;
    --green-2: #a6e3bb;
    --soft: #1d2a1b;
    --red: #f08a7c;
    --red-soft: #3a1f1b;
    --amber: #e6b65a;
    --amber-soft: #33290f;
    --ok-soft: #17301f;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.6 var(--sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
img { max-width: 100%; }
[hidden] { display: none !important; }
.sr-only, .skip:not(:focus) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip:focus { position: fixed; top: 8px; left: 8px; z-index: 100; background: var(--lime); color: var(--on-lime); padding: 6px 12px; border-radius: 6px; }
.shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.narrow { width: min(780px, calc(100% - 32px)); }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.linkish { background: none; border: 0; padding: 0; color: var(--green); text-decoration: underline; text-underline-offset: 3px; }
.eyebrow { color: var(--green); font-weight: 800; letter-spacing: 0.08em; font-size: 12px; }
.label { display: block; color: var(--green); font-weight: 800; font-size: 11px; letter-spacing: 0.08em; margin: 14px 0 6px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1.5px solid var(--line-2); background: var(--card); color: var(--ink);
  border-radius: 8px; padding: 9px 16px; font-weight: 700; line-height: 1.2;
  transition: transform 0.12s, box-shadow 0.12s, background 0.12s, border-color 0.12s;
  white-space: nowrap;
}
.btn:hover { border-color: var(--ink); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-lime { background: var(--lime); color: var(--on-lime); border: 2px solid #182018; box-shadow: 3px 3px 0 #182018; }
.btn-lime:hover { transform: translate(2px, 2px); box-shadow: 1px 1px 0 #182018; border-color: #182018; }
.btn-ghost { background: transparent; }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 7px; }
.btn-lime.btn-sm { box-shadow: 2px 2px 0 #182018; }
.btn-block { width: 100%; }
.btn.danger { color: var(--red); }
.btn.danger:hover { border-color: var(--red); }
.ico { flex: none; vertical-align: -3px; }

/* ---------- 顶栏 ---------- */
.topbar { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.topbar-in { height: 62px; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; letter-spacing: -0.04em; }
.brand small { font-size: 11px; font-weight: 700; letter-spacing: 0.06em; color: var(--muted); border: 1px solid var(--line-2); border-radius: 99px; padding: 1px 8px; }
.brand-mark { width: 24px; height: 24px; background: var(--lime); border: 2px solid var(--ink); border-radius: 50% 50% 50% 6px; transform: rotate(-22deg); flex: none; }
.nav { display: flex; gap: 22px; color: var(--muted); font-weight: 600; }
.nav a { padding: 4px 0; border-bottom: 2px solid transparent; }
.nav a:hover { color: var(--ink); }
.nav a.on { color: var(--ink); border-color: var(--lime); }
.top-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.me-link { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 14px; }
.top-write { display: none; }

/* ---------- 头像 ---------- */
.avatar { --h: 140; width: 36px; height: 36px; border-radius: 50%; display: inline-grid; place-items: center; flex: none; font-weight: 800; color: #fff; background: hsl(var(--h) 32% 34%); font-size: 15px; }
.avatar.xs { width: 20px; height: 20px; font-size: 11px; }
.avatar.sm { width: 28px; height: 28px; font-size: 13px; }
.avatar.lg { width: 64px; height: 64px; font-size: 26px; }

/* ---------- 首页 ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr); gap: 56px; padding: 56px 0 40px; align-items: end; }
.hero h1 { margin: 12px 0 18px; font-family: var(--serif); font-size: clamp(32px, 4.4vw, 54px); line-height: 1.12; letter-spacing: -0.02em; font-weight: 900; }
.hero h1 em { white-space: nowrap; font-style: normal; background: linear-gradient(transparent 62%, var(--lime) 62%); padding: 0 2px; color: var(--ink); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .hero h1 em { background: linear-gradient(transparent 62%, rgba(215, 244, 74, 0.35) 62%); } }
.lead { color: var(--muted); font-size: 17px; max-width: 600px; margin: 0; }
.hero-cta { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.signal { background: #182018; color: #fff; padding: 20px 22px; border-radius: 6px; transform: rotate(1.5deg); box-shadow: var(--shadow); }
.signal small { color: #b4c0ad; display: block; margin-bottom: 12px; font-weight: 700; letter-spacing: 0.04em; }
.signal-row { display: flex; flex-direction: column; gap: 2px; padding: 9px 0; border-top: 1px dashed #3b4a3b; font-size: 14px; }
.signal-row s { color: #ff9f8a; text-decoration-thickness: 1.5px; }
.signal-row span { color: var(--lime); }

.home-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 40px; padding-bottom: 60px; }
.home-grid.is-b { grid-template-columns: minmax(0, 1fr); }
.feed-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; border-bottom: 1px solid var(--line); padding-bottom: 12px; }
.chips { display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.chips::-webkit-scrollbar { display: none; }
.chip { padding: 5px 12px; border-radius: 99px; border: 1px solid var(--line); background: var(--card); font-size: 13px; font-weight: 600; color: var(--muted); white-space: nowrap; }
.chip:hover { color: var(--ink); border-color: var(--line-2); }
.chip.on { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.sorter { display: flex; gap: 12px; font-size: 13px; font-weight: 700; color: var(--muted); flex: none; }
.sorter a.on { color: var(--ink); text-decoration: underline; text-decoration-color: var(--lime); text-decoration-thickness: 3px; text-underline-offset: 5px; }

.feed-item { padding: 22px 0; border-bottom: 1px solid var(--line); }
.feed-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tag { color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: 0.02em; }
.tag:hover { text-decoration: underline; }
.badge { font-size: 11px; font-weight: 700; color: var(--muted); border: 1px solid var(--line-2); border-radius: 4px; padding: 0 6px; line-height: 18px; }
.badge-warn { color: var(--amber); border-color: color-mix(in srgb, var(--amber) 40%, transparent); background: var(--amber-soft); }
.badge-ok { color: var(--green); border-color: color-mix(in srgb, var(--green) 40%, transparent); background: var(--ok-soft); }
.feed-item h3, .card h3 { margin: 8px 0 6px; font-family: var(--serif); font-size: 21px; line-height: 1.38; letter-spacing: -0.01em; font-weight: 800; }
.feed-item h3 a:hover, .card h3 a:hover { color: var(--green); }
.feed-sum { margin: 0 0 10px; color: var(--muted); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.meta { display: flex; align-items: center; gap: 14px; color: var(--muted); font-size: 12.5px; flex-wrap: wrap; }
.meta-author { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-2); font-weight: 700; }
.meta-author:hover { color: var(--green); }
.meta-ico { display: inline-flex; align-items: center; gap: 3px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding-top: 18px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: flex; flex-direction: column; min-height: 220px; transition: border-color 0.15s, transform 0.15s; }
.card:hover { border-color: var(--line-2); transform: translateY(-2px); }
.card h3 { font-size: 18px; }
.card .feed-sum { -webkit-line-clamp: 3; }
.card-foot { margin-top: auto; display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 12.5px; padding-top: 12px; }

.home-side { padding-top: 6px; display: flex; flex-direction: column; gap: 18px; }
.side-box { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.side-box h3 { margin: 0 0 10px; font-size: 15px; }
.rules { margin: 0; padding-left: 18px; color: var(--muted); font-size: 13.5px; display: grid; gap: 8px; }
.rules b { color: var(--ink); }
.author-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.author-list a { display: flex; align-items: center; gap: 10px; }
.author-list span { display: flex; flex-direction: column; line-height: 1.3; }
.author-list small { color: var(--muted); }
.author-list a:hover b { color: var(--green); }
.pager { display: flex; gap: 10px; justify-content: center; padding: 24px 0 0; }
.empty { text-align: center; padding: 56px 0; color: var(--muted); }
.empty.big { padding: 90px 0; }
.empty.big h1 { color: var(--ink); font-family: var(--serif); }

/* ---------- 文章页 ---------- */
.article { width: min(720px, calc(100% - 32px)); padding: 40px 0 70px; }
.article-title { font-family: var(--serif); font-size: clamp(28px, 4vw, 40px); line-height: 1.25; margin: 12px 0 14px; letter-spacing: -0.01em; font-weight: 900; }
.article-lead { font-size: 17px; color: var(--muted); margin: 0 0 22px; border-left: 3px solid var(--lime); padding-left: 14px; }
.byline { display: flex; align-items: center; gap: 12px; padding: 16px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.byline-name { font-weight: 800; }
.byline-name:hover { color: var(--green); }
.owner-actions { margin-left: auto; display: flex; gap: 8px; }

.prose { font-size: 17px; line-height: 1.85; overflow-wrap: anywhere; }
.prose > :first-child { margin-top: 0; }
.article .prose { padding-top: 26px; }
.prose h1, .prose h2, .prose h3, .prose h4 { font-family: var(--serif); line-height: 1.4; margin: 1.8em 0 0.6em; letter-spacing: -0.01em; }
.prose h2 { font-size: 1.32em; padding-left: 12px; border-left: 4px solid var(--lime); }
.prose h3 { font-size: 1.12em; }
.prose p { margin: 0 0 1.1em; }
.prose a { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }
.prose blockquote { margin: 1.2em 0; padding: 12px 16px; background: var(--soft); border-left: 4px solid var(--green); border-radius: 0 8px 8px 0; color: var(--ink-2); }
.prose blockquote p:last-child { margin-bottom: 0; }
.prose ul, .prose ol { padding-left: 1.4em; margin: 0 0 1.1em; }
.prose li { margin: 0.3em 0; }
.prose code { font-family: var(--mono); font-size: 0.88em; background: var(--soft); padding: 1px 5px; border-radius: 4px; }
.prose pre { background: var(--soft); padding: 14px; border-radius: 8px; overflow-x: auto; }
.prose pre code { background: none; padding: 0; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
.prose img { border-radius: 8px; }
.table-wrap { overflow-x: auto; margin: 1.2em 0; border: 1px solid var(--line); border-radius: 8px; -webkit-overflow-scrolling: touch; }
.prose table { border-collapse: collapse; width: 100%; font-size: 0.88em; line-height: 1.5; font-variant-numeric: tabular-nums; }
.prose th, .prose td { padding: 9px 12px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
.prose th { background: var(--soft); font-weight: 700; }
.prose tr:last-child td { border-bottom: 0; }
.disclaimer { margin: 30px 0 0; padding: 14px 16px; background: var(--amber-soft); border-radius: 8px; color: var(--ink-2); font-size: 13.5px; line-height: 1.7; }
.disclaimer b { display: block; color: var(--amber); font-size: 12px; letter-spacing: 0.06em; margin-bottom: 2px; }
.tags { margin: 18px 0 0; display: flex; gap: 8px; flex-wrap: wrap; }
.tag-plain { font-size: 13px; color: var(--muted); background: var(--card); border: 1px solid var(--line); padding: 2px 10px; border-radius: 99px; display: inline-block; }
.article-actions { display: flex; gap: 10px; margin: 28px 0 10px; }
.like-btn { border-width: 2px; }
.like-btn b { font-variant-numeric: tabular-nums; }
.like-btn.on { background: var(--lime); color: var(--on-lime); border-color: #182018; }

.comments { margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--line); }
.comments h2, .more h2 { font-size: 18px; margin: 0 0 14px; }
.comment-form textarea { width: 100%; border: 1px solid var(--line-2); border-radius: 8px; padding: 12px; background: var(--card); resize: vertical; min-height: 84px; }
.comment-form textarea:focus, .field input:focus, .field textarea:focus, .bio-form input:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px color-mix(in srgb, var(--green) 18%, transparent); }
.comment-form-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; }
.comment-login { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px; border: 1px dashed var(--line-2); border-radius: 8px; color: var(--muted); }
.comment-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 18px; }
.comment { display: flex; gap: 12px; }
.comment-meta { display: flex; gap: 10px; align-items: baseline; }
.comment p { margin: 4px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.more { margin-top: 44px; }

/* ---------- 作者页、我的 ---------- */
.author-head, .me-head { display: flex; gap: 18px; align-items: center; padding: 40px 0 26px; }
.author-head h1, .me-head h1 { margin: 0 0 4px; font-family: var(--serif); font-size: 28px; }
.author-head p { margin: 0 0 8px; }
.author-stats { display: flex; gap: 18px; font-size: 13px; color: var(--muted); }
.author-stats b { color: var(--ink); font-size: 16px; }
.author-head + .narrow { padding-bottom: 60px; }
.me { padding-bottom: 60px; }
.me-info { flex: 1; min-width: 0; }
.bio-form { display: flex; gap: 8px; }
.bio-form input { flex: 1; min-width: 0; border: 1px solid var(--line-2); border-radius: 7px; padding: 6px 10px; background: var(--card); }
.me-bar { display: flex; gap: 10px; flex-wrap: wrap; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.me h2 { font-size: 17px; margin: 24px 0 8px; }
.mine-list { list-style: none; padding: 0; margin: 0; }
.mine { display: flex; justify-content: space-between; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); align-items: center; }
.mine-title { display: block; font-weight: 800; font-size: 16px; margin: 4px 0 2px; font-family: var(--serif); }
.mine-title:hover { color: var(--green); }
.mine-actions { display: flex; gap: 8px; flex: none; }

/* ---------- 弹窗、提示 ---------- */
.dialog { border: 0; padding: 0; border-radius: 14px; background: var(--card); color: var(--ink); width: min(420px, calc(100% - 24px)); box-shadow: 0 30px 80px rgba(0, 0, 0, 0.25); }
.dialog::backdrop { background: rgba(17, 21, 17, 0.45); backdrop-filter: blur(2px); }
.dialog-in { padding: 24px; position: relative; }
.dialog h2 { margin: 0 0 6px; font-size: 20px; }
.dialog-x { position: absolute; right: 12px; top: 10px; border: 0; background: none; font-size: 24px; color: var(--muted); line-height: 1; padding: 4px 8px; }
.field { display: block; margin-top: 14px; }
.field span { display: block; font-size: 13px; font-weight: 700; margin-bottom: 5px; }
.field input, .field textarea { width: 100%; border: 1px solid var(--line-2); border-radius: 8px; padding: 10px 12px; background: var(--paper); }
.field textarea { resize: vertical; }
.hint { min-height: 1em; margin: 5px 0 0; font-size: 12.5px; color: var(--muted); }
.hint[data-state="new"] { color: var(--green); }
.hint[data-state="bad"] { color: var(--red); }
.form-error { color: var(--red); font-size: 13px; min-height: 1em; margin: 10px 0; }
.toast { position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 120px); opacity: 0; visibility: hidden; background: #182018; color: #fff; padding: 11px 18px; border-radius: 8px; font-size: 14px; transition: transform 0.25s; z-index: 80; max-width: calc(100% - 32px); box-shadow: var(--shadow); }
.toast.show { transform: translate(-50%, 0); opacity: 1; visibility: visible; }
body[data-page="write"] .toast { bottom: 76px; }

/* ---------- 写作页 ---------- */
.write { padding: 26px 0 0; }
.editor-wrap { width: min(1180px, calc(100% - 32px)); margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 28px; align-items: start; padding-bottom: 90px; }
.editor-main { min-width: 0; }
.title-input { width: 100%; border: 0; background: transparent; resize: none; overflow: hidden; display: block; line-height: 1.3; font-family: var(--serif); font-size: clamp(26px, 3.4vw, 34px); font-weight: 900; padding: 6px 0 10px; outline: none; letter-spacing: -0.01em; }
.title-input::placeholder { color: var(--line-2); }
.meta-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding-bottom: 12px; }
.meta-row select, .meta-row input[type=text], .meta-row #f-tags { border: 1px solid var(--line); border-radius: 7px; padding: 6px 10px; background: var(--card); font-size: 13.5px; }
.meta-row #f-tags { flex: 1; min-width: 160px; }
.switch { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); cursor: pointer; user-select: none; }
.switch input { accent-color: var(--green); width: 16px; height: 16px; }
.toolbar { display: flex; gap: 4px; align-items: center; position: sticky; top: 62px; z-index: 5; background: var(--paper); padding: 8px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow-x: auto; scrollbar-width: none; }
.toolbar::-webkit-scrollbar { display: none; }
.toolbar > button { border: 0; background: none; padding: 5px 9px; border-radius: 6px; font-size: 13px; color: var(--ink-2); white-space: nowrap; }
.toolbar > button:hover { background: var(--soft); }
.toolbar-sp { flex: 1; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; padding: 2px; background: var(--card); flex: none; }
.seg button { border: 0; background: none; padding: 4px 12px; border-radius: 6px; font-size: 13px; font-weight: 700; color: var(--muted); }
.seg button.on { background: var(--ink); color: var(--paper); }
.pane-wrap { padding-top: 14px; }
.body-input { width: 100%; border: 0; background: transparent; resize: none; outline: none; font-size: 16.5px; line-height: 1.85; min-height: 55vh; padding: 0; overflow: hidden; }
.body-input::placeholder { color: var(--muted); opacity: 0.7; }
.preview-pane { min-height: 55vh; }

.assistant { position: sticky; top: 76px; max-height: calc(100vh - 160px); overflow-y: auto; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; box-shadow: var(--shadow); scrollbar-width: thin; }
.assistant-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.assistant-head h2 { margin: 0; font-size: 15px; }
.assistant-close { display: none; border: 0; background: none; font-size: 24px; color: var(--muted); line-height: 1; padding: 2px 6px; }
.tools { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tool { text-align: left; border: 1px solid var(--line); background: var(--paper); border-radius: 9px; padding: 10px 11px; display: flex; flex-direction: column; gap: 2px; transition: border-color 0.12s, background 0.12s; }
.tool b { font-size: 14px; }
.tool small { color: var(--muted); font-size: 11.5px; line-height: 1.4; }
.tool:hover:not(:disabled) { border-color: var(--green); background: var(--soft); }
.tool:disabled { opacity: 0.5; cursor: wait; }
.ai-out { margin-top: 14px; }
.ai-box { border: 1.5px solid var(--green); border-radius: 10px; padding: 14px; background: color-mix(in srgb, var(--soft) 55%, var(--card)); }
.ai-box-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.ai-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.ai-note { margin: 10px 0 0; font-size: 11.5px; color: var(--muted); }
.ai-md { font-size: 14px; line-height: 1.7; margin-top: 8px; max-height: 340px; overflow-y: auto; }
.ai-md h2 { font-size: 15px; margin: 1em 0 0.3em; }
.ai-summary { margin: 0; font-size: 14px; }
.ai-loading { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 14px; padding: 14px; border: 1px dashed var(--line-2); border-radius: 10px; }
.spinner { width: 16px; height: 16px; border-radius: 50%; border: 2px solid var(--line-2); border-top-color: var(--green); animation: spin 0.8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }
.insight-core p { margin: 0; font-family: var(--serif); font-size: 17px; font-weight: 800; line-height: 1.5; }
.insight-why p { margin: 0; font-size: 14px; color: var(--ink-2); }
.angles { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; counter-reset: a; }
.angles li { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; display: flex; flex-direction: column; gap: 4px; align-items: flex-start; }
.angles li span { font-size: 13px; color: var(--muted); }
.angles li .btn { margin-top: 4px; }
.evidence { margin: 0; padding-left: 18px; font-size: 13.5px; }
.title-opts { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.title-opts button { width: 100%; text-align: left; border: 1px solid var(--line); background: var(--card); border-radius: 8px; padding: 8px 10px; font-family: var(--serif); font-weight: 700; font-size: 14.5px; line-height: 1.45; }
.title-opts button:hover, .title-opts button.on { border-color: var(--green); background: var(--soft); }
.check-list { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 8px; }
.check-list li { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 9px 11px; cursor: pointer; }
.check-list li:hover { border-color: var(--green); }

.lint { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 14px; }
.lint-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.lint-head h3 { margin: 0; font-size: 14px; }
.lint-list { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 8px; }
.lint-ok { font-size: 13px; color: var(--muted); background: var(--ok-soft); border-radius: 8px; padding: 10px 12px; }
.lint-item { border: 1px solid var(--line); border-left-width: 4px; border-radius: 8px; padding: 8px 10px; cursor: pointer; background: var(--paper); }
.lint-item:hover { border-color: var(--line-2); }
.lint-item.lv-high { border-left-color: var(--red); }
.lint-item.lv-mid { border-left-color: var(--orange); }
.lint-item.lv-low { border-left-color: var(--line-2); }
.lint-top { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; font-size: 12px; }
.lint-top .lv { font-weight: 800; padding: 0 5px; border-radius: 4px; background: var(--line); color: var(--ink-2); }
.lv-high .lint-top .lv { background: var(--red-soft); color: var(--red); }
.lv-mid .lint-top .lv { background: var(--amber-soft); color: var(--amber); }
.lint-top .cat { color: var(--muted); font-weight: 700; }
.lint-top q { color: var(--ink); font-weight: 600; quotes: "「" "」"; }
.lint-msg { font-size: 13px; margin-top: 3px; }
.lint-fix { font-size: 12.5px; color: var(--muted); margin-top: 2px; }
.lint-fix::before { content: "建议："; color: var(--green); font-weight: 700; }

.write-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; background: color-mix(in srgb, var(--card) 94%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-top: 1px solid var(--line); padding: 10px max(16px, calc((100% - 1180px) / 2)); padding-bottom: max(10px, env(safe-area-inset-bottom)); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.write-bar-actions { display: flex; gap: 8px; }
.assistant-toggle { display: none; }
.lint-badge { background: var(--red); color: #fff; border-radius: 99px; font-size: 11px; padding: 0 6px; line-height: 17px; margin-left: 2px; }
.publish-check .pc { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; border-radius: 8px; margin-top: 10px; font-size: 13.5px; }
.pc-ok { background: var(--ok-soft); }
.pc-ok b { color: var(--green); }
.pc-warn { background: var(--amber-soft); }
.pc-warn b { color: var(--amber); }
.pc .linkish { align-self: flex-start; margin-top: 4px; }
body[data-page="write"] .footer { display: none; }

/* 想法向导 */
.idea-flow { padding: 30px 0 80px; }
.idea-card { width: min(720px, 100%); margin: 0 auto; }
.step-label { color: var(--green); font-weight: 800; font-size: 12px; letter-spacing: 0.06em; margin-bottom: 8px; }
.idea-card h1 { font-family: var(--serif); font-size: clamp(28px, 4vw, 38px); margin: 0 0 8px; }
.idea-card textarea { width: 100%; margin-top: 16px; border: 1.5px solid var(--line-2); border-radius: 10px; padding: 16px; background: var(--card); font-size: 16px; line-height: 1.75; resize: vertical; }
.idea-card textarea:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px color-mix(in srgb, var(--green) 18%, transparent); }
.idea-examples { margin-top: 8px; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.idea-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 16px; }
.idea-result { margin-top: 26px; padding: 20px; border: 1.5px solid var(--green); border-radius: 12px; background: color-mix(in srgb, var(--soft) 55%, var(--card)); }

/* ---------- 方案对比页 ---------- */
.preview { padding: 40px 0 80px; }
.preview h1 { font-family: var(--serif); font-size: clamp(26px, 3.5vw, 36px); margin: 8px 0 10px; }
.preview h2 { margin: 44px 0 12px; font-size: 20px; }
.pv-switch { margin-top: 20px; }
.pv-notes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pv-notes > div { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.pv-notes p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.pv-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-top: 16px; }
.pv-frame { margin: 0; }
.pv-frame figcaption { font-size: 13px; color: var(--muted); margin-top: 8px; text-align: center; }
.pv-frame figcaption a { color: var(--green); text-decoration: underline; }
.pv-device { border: 1px solid var(--line-2); border-radius: 18px; overflow: hidden; background: var(--paper); margin: 0 auto; box-shadow: var(--shadow); }
.pv-device[data-device="mobile"] { width: 390px; max-width: 100%; height: 760px; }
.pv-device[data-device="mobile"] iframe { width: 100%; height: 100%; border: 0; display: block; }
.pv-device[data-device="desktop"] { width: 100%; aspect-ratio: 1280 / 860; position: relative; border-radius: 10px; }
.pv-device[data-device="desktop"] iframe { position: absolute; top: 0; left: 0; width: 1280px; height: 860px; border: 0; transform-origin: 0 0; transform: scale(var(--pv-scale, 0.43)); }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--line); padding: 26px 0 34px; font-size: 13px; }
.footer-in { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ---------- 手机 ---------- */
@media (max-width: 960px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 28px; padding: 34px 0 26px; }
  .signal { transform: none; }
  .home-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .home-side { display: none; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .editor-wrap { grid-template-columns: minmax(0, 1fr); }
  .assistant { position: fixed; left: 0; right: 0; bottom: 0; top: auto; max-height: 78vh; border-radius: 16px 16px 0 0; z-index: 40; transform: translateY(105%); transition: transform 0.25s ease; padding-bottom: max(16px, env(safe-area-inset-bottom)); box-shadow: 0 -16px 40px rgba(0, 0, 0, 0.18); }
  .assistant.open { transform: translateY(0); }
  .assistant-close { display: block; }
  .assistant-toggle { display: inline-flex; }
  body.sheet-open::after { content: ""; position: fixed; inset: 0; background: rgba(17, 21, 17, 0.35); z-index: 35; }
  .pv-notes, .pv-row { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .topbar-in { height: 54px; gap: 12px; }
  .nav { display: none; }
  .brand small { display: none; }
  .top-write { display: inline-flex; }
  .me-name { display: none; }
  .toolbar { top: 54px; flex-wrap: wrap; row-gap: 2px; }
  .toolbar > button { padding: 5px 7px; }
  .signal { padding: 14px 16px; }
  .signal small { margin-bottom: 6px; }
  .signal-row { flex-direction: row; flex-wrap: wrap; column-gap: 8px; padding: 6px 0; font-size: 13px; }
  .assistant { top: auto; }
  .hero h1 { font-size: 30px; }
  .lead { font-size: 15.5px; }
  .hero-cta .btn { flex: 1; }
  .signal { padding: 16px; }
  .feed-head { flex-direction: column; align-items: stretch; gap: 10px; }
  .sorter { justify-content: flex-end; }
  .feed-item { padding: 18px 0; }
  .feed-item h3 { font-size: 18.5px; }
  .meta { gap: 10px; }
  .cards { grid-template-columns: minmax(0, 1fr); }
  .card { min-height: 0; }
  .article { padding-top: 24px; }
  .prose { font-size: 16.5px; line-height: 1.8; }
  .byline { flex-wrap: wrap; }
  .owner-actions { margin-left: 0; width: 100%; }
  .author-head, .me-head { padding-top: 26px; }
  .mine { flex-direction: column; align-items: stretch; }
  .write { padding-top: 14px; }
  .write-bar #save-state { display: none; }
  .write-bar { justify-content: flex-end; }
  .write-bar-actions { width: 100%; }
  .write-bar-actions .btn { flex: 1; }
  .meta-row #f-tags { min-width: 0; flex-basis: 100%; order: 3; }
  .idea-actions { flex-direction: column-reverse; }
  .idea-actions .btn { width: 100%; }
  .pv-device[data-device="mobile"] { height: 640px; }
  .footer-in { flex-direction: column; }
}