:root { color-scheme:light; --ink:#151515; --muted:#696963; --paper:#f5f4f0; --line:#d8d7d2; --accent:#a84b34; }
* { box-sizing:border-box; }
body { margin:0; background:var(--paper); color:var(--ink); font:15px/1.6 Arial,"Noto Sans SC","Microsoft YaHei",sans-serif; }
a { color:inherit; text-decoration:none; }
button,input,select,textarea { font:inherit; }
button,a,input,select,textarea { -webkit-tap-highlight-color:transparent; }
button { cursor:pointer; }
button:disabled { cursor:wait; opacity:.55; }
button,a { touch-action:manipulation; }
:focus-visible { outline:2px solid var(--accent); outline-offset:3px; }
[hidden] { display:none!important; }
.portal-header { min-height:64px; display:flex; align-items:center; justify-content:space-between; gap:16px; padding:10px 28px; border-bottom:1px solid var(--line); background:#fff; }
.brand { font-size:24px; font-weight:700; line-height:1; }
.portal-header nav,#account-controls { display:flex; gap:20px; align-items:center; font-size:13px; }
.portal-header button { border:0; background:none; padding:8px 0; color:var(--muted); }
main { max-width:1440px; margin:auto; padding:48px 32px 100px; }
h1,h2,h3,p { margin-top:0; }
h1 { font-size:38px; font-weight:400; line-height:1.25; margin-bottom:14px; overflow-wrap:anywhere; }
h2 { font-size:23px; font-weight:400; line-height:1.4; }
h3 { font-size:16px; font-weight:600; }
.kicker { font-size:11px; color:var(--accent); margin-bottom:14px; }
.muted,.empty { color:var(--muted); }
.empty { padding:28px 0; }
.login-layout { min-height:65vh; display:grid; grid-template-columns:minmax(0,1fr) minmax(300px,440px); gap:80px; align-items:center; max-width:1100px; margin:auto; }
.login-intro h1 { font-size:48px; max-width:9em; }
.login-intro p { max-width:28em; }
.login-stamp { border-top:1px solid var(--line); padding-top:22px; margin-top:72px; color:var(--muted); font-size:13px; }
.form-panel { background:#fff; border:1px solid var(--line); padding:32px; border-radius:4px; }
.password-panel { max-width:500px; }
.settings-profile { display:grid; grid-template-columns:88px minmax(0,1fr); gap:8px 16px; margin:0 0 30px; font-size:13px; }
.settings-profile dd { margin:0; }
.small { font-size:13px; }
.upload-form { margin-top:36px; border-top:1px solid var(--line); padding-top:24px; }
.update-editor { display:grid; gap:10px; margin-bottom:24px; }
.editor-aside .document-row { grid-template-columns:40px minmax(0,1fr); }
.editor-aside .document-row .actions { grid-column:2; }
.phase-editor > button { grid-column:1/-1; justify-self:start; }
form { display:grid; gap:18px; }
label { display:grid; gap:7px; font-size:13px; min-width:0; }
input,select,textarea { width:100%; min-width:0; border:1px solid #b8b8b2; padding:11px 12px; background:#fff; color:var(--ink); border-radius:2px; }
textarea { resize:vertical; min-height:112px; }
input[type=checkbox] { width:18px; height:18px; margin:0; accent-color:var(--ink); }
.check { display:flex; gap:9px; align-items:center; }
.button { display:inline-flex; min-height:42px; padding:9px 18px; align-items:center; justify-content:center; gap:8px; border:1px solid var(--ink); background:var(--ink); color:#fff; border-radius:2px; font-size:13px; }
.button.secondary { background:transparent; color:var(--ink); border-color:var(--line); }
.button.text { background:none; border-color:transparent; color:var(--ink); padding-left:0; }
.form-error { color:#8a3525; font-size:13px; margin:0; }
.page-heading { display:flex; justify-content:space-between; align-items:flex-end; gap:20px; margin-bottom:32px; }
.page-heading p { margin-bottom:0; }
.project-list { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; }
.client-project { display:block; border:1px solid var(--line); border-radius:4px; background:white; padding:28px; text-align:left; color:inherit; }
.client-project:hover { border-color:var(--ink); }
.client-project h2 { margin:20px 0 12px; }
.client-project .project-bottom { display:flex; justify-content:space-between; gap:20px; margin-top:32px; padding-top:16px; border-top:1px solid var(--line); font-size:12px; color:var(--muted); }
.tag { display:inline-block; font-size:12px; color:var(--accent); }
.detail-layout { display:grid; grid-template-columns:250px minmax(0,1fr); gap:64px; }
.project-side { border-top:1px solid var(--ink); padding-top:22px; }
.project-side dl { display:grid; gap:6px; font-size:13px; }
dt { color:var(--muted); } dd { margin:0 0 16px; overflow-wrap:anywhere; }
.detail-section { margin-bottom:44px; }
.detail-section > h2 { border-bottom:1px solid var(--line); padding-bottom:14px; margin-bottom:20px; }
.current-stage { font-size:30px; margin-bottom:12px; }
.paragraph { white-space:pre-wrap; overflow-wrap:anywhere; }
.timeline { padding:0; list-style:none; }
.timeline li { display:grid; grid-template-columns:32px minmax(0,1fr) auto; gap:14px; padding:15px 0; border-bottom:1px solid var(--line); }
.timeline .phase-number { color:var(--muted); font-size:12px; }
.timeline li[data-state=current] .phase-number,.timeline li[data-state=current] strong { color:var(--accent); }
.timeline strong { font-weight:400; } .timeline small { display:block; color:var(--muted); }
.document-row { display:grid; grid-template-columns:48px minmax(0,1fr) auto; gap:16px; padding:20px 0; border-bottom:1px solid var(--line); align-items:center; }
.file-mark { padding:12px 0; border:1px solid var(--line); text-align:center; font-size:11px; background:#fff; }
.document-row h3 { margin:0 0 4px; overflow-wrap:anywhere; }
.document-row p { margin:0; font-size:12px; color:var(--muted); }
.actions { display:flex; flex-wrap:wrap; gap:8px; align-items:center; }
.activity { padding:18px 0; border-bottom:1px solid var(--line); }
.activity time { font-size:12px; color:var(--muted); }
.activity p { margin:8px 0 0; white-space:pre-wrap; overflow-wrap:anywhere; }
.notice { position:fixed; z-index:100; bottom:24px; left:50%; transform:translateX(-50%); max-width:calc(100% - 32px); background:var(--ink); color:white; padding:12px 20px; font-size:13px; }
.admin-tabs { display:flex; gap:24px; border-bottom:1px solid var(--line); margin-bottom:30px; }
.admin-tabs button { border:0; border-bottom:2px solid transparent; padding:12px 0; background:none; color:var(--muted); }
.admin-tabs button[aria-current=true] { border-color:var(--ink); color:var(--ink); }
.editor-layout { display:grid; grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr); gap:48px; }
.fields { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }
.wide { grid-column:1/-1; }
fieldset { border:0; border-top:1px solid var(--line); padding:20px 0 0; margin:6px 0 0; min-width:0; }
legend { font-size:18px; padding:0 12px 0 0; }
.phase-editor { display:grid; grid-template-columns:1fr 100px 135px; gap:10px; margin-bottom:12px; align-items:end; }
.phase-editor label:nth-child(4) { grid-column:1/-1; }
.members { display:grid; gap:8px; padding:12px 0; }
.editor-aside { border-top:1px solid var(--line); padding-top:20px; }
.user-row { display:flex; justify-content:space-between; gap:20px; border-bottom:1px solid var(--line); padding:18px 0; flex-wrap:wrap; }
.user-row h3,.user-row p { margin-bottom:4px; }
dialog { padding:0; border:0; width:calc(100% - 40px); max-width:1500px; height:calc(100dvh - 40px); background:var(--paper); }
dialog::backdrop { background:rgba(0,0,0,.45); }
.reader-bar { min-height:64px; display:flex; align-items:center; gap:20px; padding:12px 20px; background:#fff; border-bottom:1px solid var(--line); }
.reader-bar h2 { margin:0 auto 0 0; font-size:15px; }
.reader-bar a,.reader-bar button { font-size:12px; white-space:nowrap; }
.reader-bar button { border:0; background:transparent; }
#pdf-frame { display:block; width:100%; height:calc(100% - 65px); border:0; }
@media(max-width:760px) {
  .portal-header { padding:14px 16px; flex-wrap:wrap; } .brand { font-size:21px; }
  .portal-header nav,#account-controls { gap:12px; font-size:12px; } #account-controls .account-name { display:none; }
  main { padding:30px 18px 72px; } h1 { font-size:29px; }
  .login-layout,.detail-layout,.editor-layout { grid-template-columns:1fr; gap:32px; }
  .login-layout { min-height:0; } .login-intro h1 { font-size:36px; } .login-stamp { display:none; }
  .form-panel { padding:24px; } .project-list { grid-template-columns:1fr; }
  .page-heading { align-items:flex-start; flex-wrap:wrap; }
  .project-side dl { grid-template-columns:74px 1fr; gap:8px; } dd { margin-bottom:8px; }
  .document-row { grid-template-columns:40px minmax(0,1fr); gap:12px; } .document-row .actions { grid-column:2; }
  .fields { grid-template-columns:1fr; } .phase-editor { grid-template-columns:1fr 96px; } .phase-editor label:nth-child(3) { grid-column:1/-1; }
  .timeline li { grid-template-columns:24px minmax(0,1fr) auto; gap:8px; }
  dialog { width:100%; max-width:100%; height:100dvh; max-height:100dvh; } .reader-bar { gap:12px; flex-wrap:wrap; } .reader-bar h2 { flex-basis:100%; }
  #pdf-frame { height:calc(100% - 100px); }
}