:root {
  --ink: #15191d;
  --muted: #687078;
  --line: #dfe3e6;
  --paper: #f6f7f5;
  --white: #fff;
  --teal: #087f72;
  --teal-dark: #075f57;
  --coral: #e45f47;
  --yellow: #f0c94b;
  --shadow: 0 16px 40px rgba(21, 25, 29, .09);
  --radius: 8px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 15px/1.65 Inter, "Microsoft YaHei", sans-serif; letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; letter-spacing: 0; }
button, .button { cursor: pointer; }
.site-header { min-height: 68px; padding: 0 4vw; display: flex; align-items: center; gap: 28px; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 900; font-size: 20px; }
.brand-mark { width: 32px; height: 32px; display: grid; place-items: center; color: white; background: var(--teal); border-radius: 6px; }
.brand small { color: var(--muted); font-size: 12px; font-weight: 600; }
.main-nav, .account-nav { display: flex; align-items: center; gap: 22px; }
.main-nav a:hover, .account-nav > a:not(.button):hover { color: var(--teal); }
.account-nav { margin-left: auto; }
.icon-button { width: 40px; height: 40px; border: 1px solid var(--line); background: white; border-radius: 6px; }
.menu-toggle { display: none; margin-left: auto; }
.button { min-height: 42px; padding: 9px 18px; display: inline-flex; align-items: center; justify-content: center; gap: 7px; border: 1px solid transparent; border-radius: 6px; font-weight: 750; }
.button-primary { color: white; background: var(--teal); }
.button-primary:hover { background: var(--teal-dark); }
.button-coral { color: white; background: var(--coral); }
.button-quiet { border-color: var(--line); background: white; }
.container { width: min(1180px, 92vw); margin: 0 auto; }
.hero { min-height: 620px; display: grid; align-items: center; position: relative; overflow: hidden; background: white; }
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(255,255,255,.99) 0%, rgba(255,255,255,.93) 30%, rgba(255,255,255,.18) 62%, transparent 100%); }
.hero-content { width: min(1180px, 92vw); margin: 0 auto; position: relative; z-index: 1; }
.hero-copy { width: min(610px, 100%); }
.eyebrow { margin: 0 0 12px; color: var(--teal); font-size: 13px; font-weight: 850; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.2; margin-top: 0; }
h1 { margin-bottom: 18px; font-size: clamp(38px, 5vw, 66px); max-width: 12ch; }
.hero-copy > p { max-width: 540px; font-size: 18px; color: #4d565c; }
.search-bar { margin-top: 30px; padding: 8px; display: grid; grid-template-columns: 1.8fr 1fr auto; gap: 8px; background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.search-bar input, .search-bar select { min-width: 0; height: 48px; padding: 0 14px; border: 0; outline: 0; background: transparent; }
.search-bar select { border-left: 1px solid var(--line); }
.hero-stats { margin-top: 22px; display: flex; gap: 30px; color: var(--muted); }
.hero-stats strong { display: block; color: var(--ink); font-size: 22px; }
.section { padding: 76px 0; }
.section-white { background: white; }
.section-head { margin-bottom: 28px; display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.section-head h2 { margin-bottom: 6px; font-size: 30px; }
.section-head p { margin: 0; color: var(--muted); }
.text-link { color: var(--teal); font-weight: 750; }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.category-card { min-height: 150px; padding: 22px; border: 1px solid var(--line); background: white; border-radius: var(--radius); transition: transform .18s, border-color .18s; }
.category-card:hover { transform: translateY(-3px); border-color: var(--teal); }
.category-icon { width: 38px; height: 38px; display: grid; place-items: center; color: var(--teal); background: #e8f4f2; border-radius: 6px; font-size: 20px; }
.category-card h3 { margin: 18px 0 6px; font-size: 18px; }
.category-card p { margin: 0; color: var(--muted); font-size: 13px; }
.job-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start; }
.job-list { display: grid; gap: 12px; }
.job-card { padding: 22px; display: grid; grid-template-columns: 1fr auto; gap: 18px; border: 1px solid var(--line); background: white; border-radius: var(--radius); }
.job-card:hover { border-color: #a7bfbb; box-shadow: 0 10px 24px rgba(21,25,29,.06); }
.job-card h3 { margin-bottom: 8px; font-size: 19px; }
.job-card .company { margin: 0 0 12px; color: #3d464c; }
.job-meta, .tag-row { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 13px; }
.tag { padding: 4px 8px; color: #4e5b61; background: #f0f2f1; border-radius: 4px; }
.salary { color: var(--coral); font-size: 18px; font-weight: 850; white-space: nowrap; }
.panel { padding: 24px; border: 1px solid var(--line); background: white; border-radius: var(--radius); }
.panel h2, .panel h3 { font-size: 20px; }
.filter-panel form { display: grid; gap: 14px; }
.field { display: grid; gap: 7px; }
.field label { font-weight: 700; font-size: 13px; }
.field input, .field select, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid #ccd2d5; border-radius: 5px; background: white; outline: none; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(8,127,114,.1); }
.field textarea { min-height: 130px; resize: vertical; }
.page-hero { padding: 58px 0 42px; background: #173d39; color: white; }
.page-hero h1 { max-width: none; margin-bottom: 8px; font-size: 38px; }
.page-hero p { margin: 0; color: #c9dcda; }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 26px; align-items: start; }
.detail-main, .detail-side { display: grid; gap: 18px; }
.detail-main section, .detail-side section { padding: 28px; background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.detail-main h2 { font-size: 21px; }
.preline { white-space: pre-line; }
.sticky { position: sticky; top: 90px; }
.form-shell { width: min(760px, 92vw); margin: 48px auto 80px; padding: 34px; background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field-full { grid-column: 1 / -1; }
.auth-choice { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.choice-card { padding: 28px; border: 1px solid var(--line); background: white; border-radius: var(--radius); }
.choice-card:hover { border-color: var(--teal); }
.flash { padding: 12px 4vw; text-align: center; }
.flash-error { color: #8a2c1d; background: #ffe9e4; }
.flash-success { color: #135c45; background: #e4f6ef; }
.member-shell { width: min(1180px, 92vw); margin: 40px auto 80px; display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 24px; align-items: start; }
.member-nav { padding: 14px; display: grid; gap: 4px; background: white; border: 1px solid var(--line); border-radius: var(--radius); position: sticky; top: 90px; }
.member-nav a { padding: 10px 12px; border-radius: 5px; }
.member-nav a:hover, .member-nav a.active { color: var(--teal); background: #eaf5f3; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.metric { padding: 20px; background: white; border-left: 4px solid var(--teal); }
.metric strong { display: block; font-size: 28px; }
.data-table { width: 100%; border-collapse: collapse; background: white; }
.data-table th, .data-table td { padding: 14px; border-bottom: 1px solid var(--line); text-align: left; }
.empty { padding: 50px 20px; text-align: center; color: var(--muted); background: white; border: 1px dashed #bac1c4; }
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.plan { padding: 24px; border: 1px solid var(--line); background: white; border-radius: var(--radius); }
.plan-featured { border: 2px solid var(--teal); }
.site-footer { padding: 42px 4vw; display: grid; grid-template-columns: 1fr auto auto; gap: 30px; align-items: center; color: #d4d9da; background: #15191d; }
.site-footer p { margin: 4px 0 0; color: #9fa7ab; }
.site-footer nav { display: flex; gap: 18px; }
@media (max-width: 900px) {
  .menu-toggle { display: grid; place-items: center; }
  .main-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; padding: 18px 4vw; background: white; border-bottom: 1px solid var(--line); }
  .main-nav.open { display: grid; }
  .account-nav > a:not(.button-primary) { display: none; }
  .hero { min-height: 660px; align-items: end; }
  .hero::after { background: linear-gradient(180deg, rgba(255,255,255,.25), rgba(255,255,255,.98) 45%); }
  .hero-content { padding-bottom: 42px; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .job-layout, .detail-grid, .member-shell { grid-template-columns: 1fr; }
  .sticky, .member-nav { position: static; }
  .member-nav { grid-template-columns: repeat(3, 1fr); }
  .site-footer { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .site-header { padding: 0 18px; gap: 12px; }
  .brand small { display: none; }
  .account-nav .button { padding-inline: 12px; }
  h1 { font-size: 40px; }
  .search-bar { grid-template-columns: 1fr; }
  .search-bar select { border-left: 0; border-top: 1px solid var(--line); }
  .hero-stats { gap: 16px; }
  .category-grid, .form-grid, .auth-choice, .metric-grid, .plan-grid { grid-template-columns: 1fr; }
  .job-card { grid-template-columns: 1fr; }
  .salary { grid-row: 1; }
  .section { padding: 54px 0; }
  .member-nav { grid-template-columns: 1fr 1fr; }
  .form-shell { padding: 22px; }
  .site-footer nav { flex-wrap: wrap; }
}