/* ============================================================
   PRD 管理平台 · 编辑/瑞士风
   设计语言：
   - 暖白纸面（cream）+ 墨色字 + 单一深色 accent
   - 细描边分隔，无玻璃、无渐变、无背景动画
   - 衬线大标题 + 强对比字号层级
   - 一切交互克制：仅细微 hover
   ============================================================ */

:root {
  /* 纸面与墨色 */
  --bg:        #f1ede4;   /* 暖米白底 */
  --paper:     #fbf8f1;   /* 卡片纸面 */
  --ink:       #161513;   /* 主文字 / 主按钮 */
  --ink-2:     #3b3833;   /* 次级文字 */
  --muted:     #8a857a;   /* 弱化文字 */
  --line:      #d6cfbf;   /* 主描边 */
  --line-2:    #e6e0d0;   /* 次描边 */
  /* 单一 accent（深森林绿，保险/健康行业克制感） */
  --accent:    #1f3a34;
  --accent-2:  #2c5048;
  --accent-soft:#e6e2d2;
  /* 状态色 */
  --danger:    #a23a1f;
  --ok:        #2f6b4a;

  --r-sm: 4px;
  --r-md: 6px;
  --r-lg: 10px;

  --serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", "STSong", Georgia, "Times New Roman", serif;
  --sans:  -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; }

body {
  font-family: var(--sans);
  color: var(--ink);
  min-height: 100vh;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 14px;
  line-height: 1.55;
}

a { color: inherit; }

/* ===================== 登录页 ===================== */
body.auth {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
}

.auth-shell {
  width: 100%;
  max-width: 1080px;
  min-height: calc(100vh - 64px);
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.auth-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 32px;
  border-bottom: 1px solid var(--line);
}
.auth-head .mark {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.5px;
  border: 1px solid var(--ink);
  padding: 4px 10px;
  border-radius: 2px;
}
.auth-head .org { font-size: 12.5px; color: var(--muted); letter-spacing: 0.4px; }

.auth-main {
  flex: 1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: stretch;
}
.auth-copy {
  padding: 72px 56px;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; justify-content: center;
  background: var(--bg);
}
.auth-copy .eyebrow {
  font-size: 11.5px;
  letter-spacing: 3px;
  color: var(--muted);
  text-transform: uppercase;
  margin: 0 0 22px;
  font-weight: 500;
}
.auth-copy h1 {
  font-family: var(--serif);
  font-size: 52px;
  line-height: 1.1;
  font-weight: 600;
  margin: 0 0 22px;
  letter-spacing: -0.5px;
  color: var(--ink);
}
.auth-copy .lead {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.7;
  max-width: 380px;
  margin: 0;
}
.auth-copy .meta {
  margin-top: 44px;
  display: flex; gap: 28px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.3px;
}
.auth-copy .meta span b { color: var(--ink); font-weight: 600; margin-right: 4px; }

.auth-form {
  padding: 72px 56px;
  display: flex; flex-direction: column; justify-content: center;
  max-width: 460px;
}
.auth-form .form-eyebrow {
  font-size: 11.5px; letter-spacing: 2.5px; color: var(--muted);
  text-transform: uppercase; margin: 0 0 18px;
}
.auth-form h2 {
  font-family: var(--serif);
  font-size: 28px; font-weight: 600; margin: 0 0 8px; letter-spacing: -0.2px;
}
.auth-form .form-sub { color: var(--muted); font-size: 13px; margin: 0 0 36px; }

.field { margin-bottom: 26px; }
.field label {
  display: block;
  font-size: 11.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
  font-weight: 500;
}
.field input {
  width: 100%;
  padding: 8px 0 10px;
  border: none;
  border-bottom: 1px solid var(--line);
  background: transparent;
  font-size: 17px;
  color: var(--ink);
  font-family: var(--sans);
  outline: none;
  transition: border-color 0.18s;
}
.field input::placeholder { color: #b8b1a2; }
.field input:focus { border-bottom-color: var(--ink); }

.submit {
  margin-top: 8px;
  width: 100%;
  padding: 15px 20px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: background 0.18s, color 0.18s;
}
.submit:hover { background: var(--accent); border-color: var(--accent); }
.submit:disabled { opacity: 0.5; cursor: not-allowed; }

.demo {
  margin-top: 14px;
  width: 100%;
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 12.5px;
  cursor: pointer;
  padding: 6px;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--line);
}
.demo:hover { color: var(--ink); text-decoration-color: var(--ink); }

.err {
  color: var(--danger);
  font-size: 13px;
  min-height: 18px;
  margin: 0 0 6px;
  font-weight: 500;
}

.auth-foot {
  display: flex; justify-content: space-between;
  padding: 16px 32px;
  border-top: 1px solid var(--line);
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.4px;
}

@media (max-width: 820px) {
  .auth-main { grid-template-columns: 1fr; }
  .auth-copy { padding: 44px 28px; border-right: none; border-bottom: 1px solid var(--line); }
  .auth-copy h1 { font-size: 38px; }
  .auth-form { padding: 44px 28px; }
}

/* ===================== 白·蓝·橙 / AI 保险科技 ===================== */
body,
body.auth,
body:not(.auth):not(.project-page) {
  --bg:#f5f9ff; --paper:#fff; --ink:#12233f; --ink-2:#425675;
  --muted:#7b8ba5; --line:#dce7f5; --line-2:#edf3fa;
  --accent:#2878f0; --accent-2:#579cff;
  background:linear-gradient(145deg,#f7fbff 0%,#eef5ff 54%,#fff8ef 100%);
}
body.auth { background:linear-gradient(135deg,#eef6ff,#fff 54%,#fff3e4); }
.auth-shell { background:#fff; border-color:#dbe8f7; box-shadow:0 24px 70px rgba(42,105,190,.14); }
.auth-head { background:#fff; }
.auth-head .brand-word,.auth-copy .eyebrow,.auth-form .form-eyebrow { color:#2878f0; }
.auth-copy { background:linear-gradient(145deg,#edf5ff,#fff9f1); }
.auth-copy h1,.field input { color:#12233f; }
.auth-form { background:#fff; }
.submit,.pill-btn { background:linear-gradient(135deg,#2878f0,#559cff); border-color:#2878f0; }
.submit:hover,.pill-btn:hover { background:#1769dc; border-color:#1769dc; }
.topbar { background:rgba(255,255,255,.9); border-bottom-color:#dce7f5; color:#12233f; }
.brand .logo { color:#fff; border:0; background:linear-gradient(145deg,#2878f0,#ff982f); box-shadow:0 5px 14px rgba(40,120,240,.22); }
.card { background:#fff; border-color:#dce7f5; box-shadow:0 12px 35px rgba(48,101,170,.08); }
.card:hover { border-color:#72aaf5; box-shadow:0 18px 45px rgba(48,101,170,.14); }
.card h3 { color:#12233f; text-align:center; overflow-wrap:anywhere; }
.card p,.card .card-foot { color:#637590; }
body.project-page { background:#eef5fb; }
body.project-page .topbar { height:48px; min-height:48px; padding:0 22px; justify-content:center; background:rgba(255,255,255,.94); }
body.project-page .platform-brand { font-size:14px; gap:8px; }
body.project-page .platform-brand .logo { width:25px; height:25px; font-size:13px; display:grid; place-items:center; border-radius:8px; }
body.project-page .user { position:absolute; right:18px; }
body.project-page .user span { font-size:11px; }
body.project-page .user button { padding:5px 11px; }
body.project-page .mac-window { height:calc(100vh - 58px); }

/* 统一 AI 智能核保科技风：白、蓝、橙 */
body.auth, body:not(.auth):not(.project-page) {
  --bg:#f4f8ff; --paper:#fff; --ink:#15243a; --ink-2:#52637a;
  --muted:#8492a6; --line:#dbe6f4; --line-2:#edf2f8;
  --accent:#377cf6; --accent-2:#215fce;
  background:radial-gradient(circle at 10% 12%,rgba(55,124,246,.13),transparent 28%),radial-gradient(circle at 88% 18%,rgba(255,145,61,.12),transparent 25%),linear-gradient(145deg,#f8fbff,#eef5ff 58%,#fff8f1);
  color:var(--ink);
}
.topbar{background:rgba(255,255,255,.9);border-bottom-color:#dbe6f4}.brand .logo{color:#fff;border-color:#377cf6;background:#377cf6}
.auth-shell{background:#fff;border-color:#dbe6f4;box-shadow:0 24px 80px rgba(43,91,153,.14)}.auth-head,.auth-form{background:#fff}.auth-copy{background:linear-gradient(145deg,#eaf3ff,#f8fbff 60%,#fff4e8)}.auth-copy h1{color:#17335d}.auth-copy .eyebrow,.auth-form .form-eyebrow,.auth-head .brand-word{color:#377cf6}.submit,.pill-btn{background:#377cf6;border-color:#377cf6}.submit:hover,.pill-btn:hover{background:#215fce;border-color:#215fce}
.section-head{justify-content:center;text-align:center}.section-head>div{width:100%}.card{min-height:190px;background:linear-gradient(145deg,#fff,#f7faff);border-color:#d8e5f5;text-align:center;align-items:center}.card::after{content:"AI 核保";position:absolute;top:16px;left:18px;padding:3px 8px;border-radius:999px;background:#fff0df;color:#ed7e20;font-size:10px;font-weight:700}.card h3{width:82%;margin:42px auto 16px;text-align:center;line-height:1.45;white-space:normal;overflow-wrap:anywhere}.card .card-foot{width:100%;justify-content:center;gap:18px}.card:hover{border-color:#77a6fa;box-shadow:0 18px 45px rgba(55,124,246,.13)}

/* ===================== 顶部栏 ===================== */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 28px;
  height: 64px;
  position: sticky; top: 0; z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.brand { font-family: var(--serif); font-weight: 600; font-size: 17px; display: flex; align-items: center; gap: 12px; letter-spacing: 0.2px; }
.brand .logo {
  width: 28px; height: 28px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  display: grid; place-items: center;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 15px; font-weight: 700;
  background: var(--paper);
}
.user { font-size: 13px; color: var(--ink-2); display: flex; align-items: center; gap: 18px; }
.user b { color: var(--ink); font-weight: 600; }

button.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 7px 16px;
  border-radius: var(--r-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: all 0.15s;
}
button.ghost:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* ===================== 桌面 ===================== */
.container { width: 100%; max-width: none; margin: 0 auto; padding: 32px 40px 64px; }

.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 24px; gap: 20px; flex-wrap: wrap;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.section-head h2 {
  font-family: var(--serif);
  font-size: 24px; margin: 0 0 4px; font-weight: 600; letter-spacing: -0.2px;
}
.section-head .subtitle { color: var(--muted); font-size: 13px; letter-spacing: 0.2px; }
.section-head .eyebrow {
  display: block;
  font-size: 11px; letter-spacing: 3px; color: var(--muted);
  text-transform: uppercase; margin-bottom: 10px;
}

.pill-btn {
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  padding: 10px 20px;
  border-radius: var(--r-sm);
  transition: all 0.15s;
}
.pill-btn:hover { background: var(--accent); border-color: var(--accent); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }

.card {
  border-radius: var(--r-md);
  padding: 24px 22px 22px;
  cursor: pointer;
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  transition: border-color 0.18s, transform 0.18s;
  display: flex; flex-direction: column; min-height: 168px;
}
.card::before {
  content: attr(data-num);
  position: absolute; top: 20px; right: 22px;
  font-family: var(--serif);
  font-size: 13px;
  color: var(--muted);
  font-style: italic;
  letter-spacing: 0.5px;
}
.card:hover { border-color: var(--ink); }
.card h3 {
  margin: 4px 0 10px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.1px;
}
.card p { margin: 0 0 16px; color: var(--ink-2); font-size: 13px; line-height: 1.6; flex: 1; }
.card .card-foot {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--line-2);
  font-size: 11.5px; color: var(--muted);
  letter-spacing: 0.3px;
}
.card .card-foot .arrow {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--ink);
  transition: transform 0.18s;
}
.card:hover .card-foot .arrow { transform: translateX(4px); }

/* 新增表单 */
.add-form {
  margin-top: 24px;
  border-radius: var(--r-md);
  padding: 28px;
  background: var(--paper);
  border: 1px solid var(--line);
}
.add-form.hidden { display: none; }
.add-form .row { display: flex; gap: 24px; margin-bottom: 22px; flex-wrap: wrap; }
.add-form .field-sm { flex: 1; min-width: 220px; }
.add-form .field-sm label {
  display: block;
  font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--muted); margin-bottom: 8px;
}
.add-form .field-sm input {
  width: 100%; padding: 8px 0;
  border: none; border-bottom: 1px solid var(--line);
  background: transparent; font-size: 15px; color: var(--ink);
  outline: none; transition: border-color 0.18s;
  font-family: var(--sans);
}
.add-form .field-sm input:focus { border-bottom-color: var(--ink); }
.add-form .actions { align-items: center; gap: 16px; }
.add-form .actions button {
  padding: 11px 22px; border: 1px solid var(--ink); border-radius: var(--r-sm);
  cursor: pointer; font-size: 13px; font-weight: 600; letter-spacing: 1px;
  background: var(--ink); color: var(--paper);
}
.add-form .actions button.ghost { background: transparent; color: var(--ink); }
.add-form .actions button:hover { background: var(--accent); border-color: var(--accent); }
.add-form .actions button.ghost:hover { background: var(--ink); color: var(--paper); }

/* ===================== 项目页 / 浏览器框 ===================== */
.project-meta {
  max-width: 1120px;
  margin: 0 auto;
  padding: 40px 28px 0;
}
.project-meta .eyebrow {
  font-size: 11px; letter-spacing: 3px; color: var(--muted);
  text-transform: uppercase; margin: 0 0 10px;
}
.project-meta h2 {
  font-family: var(--serif);
  font-size: 32px; font-weight: 600; margin: 0 0 12px; letter-spacing: -0.3px;
}
.project-meta .desc { margin: 0 0 6px; color: var(--ink-2); font-size: 15px; line-height: 1.7; max-width: 760px; }
.project-meta .meta-foot { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12.5px; letter-spacing: 0.3px; }

.mac-window {
  max-width: 1120px;
  margin: 28px auto 60px;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
}
.mac-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 18px;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.mac-bar .dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; border: 1px solid rgba(0,0,0,0.08); }
.mac-bar .dot.red    { background: #d97060; }
.mac-bar .dot.yellow { background: #d9b85a; }
.mac-bar .dot.green  { background: #7fa978; }
.mac-bar .mac-title {
  margin-left: 14px;
  font-size: 12.5px; color: var(--ink-2); font-weight: 500;
  font-family: var(--serif);
  font-style: italic;
}
.mac-bar .mac-actions { margin-left: auto; display: flex; gap: 0; border: 1px solid var(--line); border-radius: var(--r-sm); overflow: hidden; }
.mac-bar .seg {
  border: none; border-right: 1px solid var(--line); background: var(--paper);
  color: var(--ink-2); font-size: 12.5px; font-weight: 500;
  padding: 6px 16px; cursor: pointer;
  letter-spacing: 0.5px;
  transition: all 0.15s;
}
.mac-bar .seg:last-child { border-right: none; }
.mac-bar .seg:hover { background: var(--bg); }
.mac-bar .seg.active { background: var(--ink); color: var(--paper); }

.prd-frame {
  width: 100%;
  height: calc(100vh - 280px);
  min-height: 520px;
  border: none;
  background: var(--paper);
  display: block;
}

/* 空状态 */
.empty-state { text-align: center; color: var(--muted); padding: 80px 20px; font-family: var(--serif); font-style: italic; }

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* 选区 */
::selection { background: var(--accent); color: var(--paper); }

/* ===================== 白·蓝·橙 保险科技主题 ===================== */
body:not(.auth):not(.project-page), body.auth {
  --bg:#f3f8ff; --paper:#fff; --ink:#102542; --ink-2:#425a78;
  --muted:#7a8da8; --line:#dbe7f5; --line-2:#edf3fa;
  --accent:#2878f0; --accent-2:#5a9fff;
  min-height:100vh;
  background:linear-gradient(145deg,#edf6ff 0%,#fff 55%,#fff4e8 100%);
}
.auth-shell { min-height:min(760px,calc(100vh - 64px)); background:#fff; border-color:#d6e5f6; box-shadow:0 28px 80px rgba(39,102,183,.14); }
.auth-head { background:linear-gradient(90deg,#f1f7ff,#fff8ef); }
.auth-head .brand-word { font-size:11px; letter-spacing:2.6px; color:#2878f0; font-weight:700; }
.auth-copy { background:linear-gradient(145deg,#e9f3ff 0%,#f8fbff 62%,#fff0df 100%); }
.auth-copy h1 { font-family:var(--sans); font-size:46px; letter-spacing:-.04em; color:#12315c; }
.auth-copy .eyebrow,.auth-form .form-eyebrow { color:#2878f0; }
.auth-copy .lead { color:#4e6581; }
.auth-form { background:#fff; }
.auth-form h2 { color:#102542; }
.field input { color:#102542; background:#f5f9ff; border:1px solid #dbe7f5; border-radius:10px; padding:12px; }
.field input:focus { border-color:#579cff; box-shadow:0 0 0 3px rgba(40,120,240,.1); }
.submit { background:linear-gradient(135deg,#2878f0,#579cff); border-color:#2878f0; color:#fff; border-radius:10px; }
.submit:hover { background:#1769dc; border-color:#1769dc; }
.auth-foot { min-height:50px; background:#fff; }
.topbar { background:rgba(255,255,255,.92); border-bottom:1px solid #dbe7f5; backdrop-filter:blur(18px); }
.brand .logo { color:#fff; border:0; background:linear-gradient(145deg,#2878f0,#ff962f); box-shadow:0 5px 15px rgba(40,120,240,.2); }
.container { padding:52px 56px 80px; }
.section-head { padding-bottom:28px; margin-bottom:32px; border-bottom-color:#dbe7f5; }
.section-head h2 { font-family:var(--sans); font-size:30px; letter-spacing:-.03em; color:#102542; }
.section-head .subtitle { color:#71849e; }
.pill-btn { background:linear-gradient(135deg,#2878f0,#579cff); border-color:#2878f0; color:#fff; border-radius:10px; }
.card { min-height:170px; border-radius:16px; background:linear-gradient(145deg,#fff,#f7fbff); border-color:#dbe7f5; box-shadow:0 12px 34px rgba(42,97,170,.09); }
.card::before { content:"AI 核保"; align-self:flex-start; padding:3px 9px; border-radius:999px; background:#fff0df; color:#e47713; font-size:10px; font-weight:700; }
.card:hover { border-color:#77adf6; transform:translateY(-3px); box-shadow:0 18px 45px rgba(42,97,170,.14); }
.card h3 { font-family:var(--sans); font-size:18px; margin-top:8px; color:#17345e; }
.card .card-foot { margin-top:auto; border-top-color:#e5eef8; }

body.project-page { background: #eef3f6; }
body.project-page { height: 100vh; overflow: hidden; }
body.project-page .topbar { background: rgba(245,248,250,.92); }
body.project-page .project-meta { max-width: 1280px; padding: 20px 28px 0; }
body.project-page .project-meta .eyebrow { margin-bottom: 4px; color: #6d7a83; }
body.project-page .project-meta h2 { font-family: var(--sans); font-size: 25px; margin-bottom: 4px; }
body.project-page .project-meta .meta-foot { margin-top: 8px; padding-top: 8px; }
body.project-page .mac-window { width:98%; max-width:none; margin:16px auto 28px; border-radius:12px; background:#fff; }
body.project-page .mac-bar { background: #f7f9fa; padding: 10px 16px; }
body.project-page .prd-frame { height: calc(100vh - 205px); min-height: 560px; }
body.project-page .mac-window { height: calc(100vh - 80px); margin: 8px auto; }
body.project-page .prd-frame { height: 100%; min-height: 0; }

@media (max-width: 820px) {
  .container { padding: 32px 20px 60px; }
  .auth-shell { min-height: calc(100vh - 40px); }
  .auth-copy h1 { font-size: 36px; }
}