:root {
  --ink: #18352f;
  --green: #17483c;
  --green-2: #266958;
  --cream: #f5f1e8;
  --paper: #fffdf8;
  --line: #dedbd2;
  --muted: #728079;
  --gold: #d5a441;
  --danger: #a64236;
  --shadow: 0 18px 50px rgba(35, 51, 45, .09);
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--cream); font-family: Inter, "Microsoft YaHei", "PingFang SC", sans-serif; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.eyebrow { margin: 0 0 6px; color: var(--green-2); font-size: 11px; font-weight: 800; letter-spacing: .15em; }
.eyebrow.light { color: #c9e5dc; }
.muted { color: var(--muted); }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at top right, #316c5d 0, #173f35 38%, #102d26 100%); }
.login-card { width: min(480px, 100%); padding: 48px; border-radius: 24px; background: var(--paper); box-shadow: 0 30px 80px rgba(0,0,0,.25); }
.brand-mark { display: grid; place-items: center; width: 56px; height: 56px; margin-bottom: 20px; border-radius: 16px; color: white; background: var(--green); font-family: Georgia, serif; font-size: 27px; }
.brand-mark.small { width: 40px; height: 40px; margin: 0; border-radius: 11px; font-size: 20px; background: #f0e8d4; color: var(--green); }
.login-card h1 { margin: 0 0 10px; font-family: Georgia, "Songti SC", serif; font-size: 36px; }
.login-card form { margin-top: 34px; }
label { display: block; margin-bottom: 7px; font-size: 13px; font-weight: 700; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 10px; background: white; color: var(--ink); outline: none; transition: .2s; }
input, select { height: 44px; padding: 0 13px; }
textarea { min-height: 90px; padding: 12px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--green-2); box-shadow: 0 0 0 3px rgba(38,105,88,.11); }
.password-row { display: flex; gap: 10px; }
.primary, .secondary, .light-btn { min-height: 42px; padding: 0 18px; border: 0; border-radius: 10px; font-weight: 750; white-space: nowrap; }
.primary { color: white; background: var(--green); }
.primary:hover { background: var(--green-2); }
.secondary { color: var(--green); border: 1px solid #c9c7be; background: transparent; }
.light-btn { color: var(--green); background: white; }
.text-btn, .back-btn { padding: 0; border: 0; color: var(--green-2); background: transparent; font-weight: 750; }
.form-message { min-height: 20px; color: var(--danger); font-size: 13px; }
.app-shell { min-height: 100vh; display: grid; grid-template-columns: 245px 1fr; }
.sidebar { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 27px 18px; color: white; background: var(--green); }
.brand { display: flex; align-items: center; gap: 11px; padding: 0 10px 28px; border-bottom: 1px solid rgba(255,255,255,.13); }
.brand strong, .brand span { display: block; }
.brand span { margin-top: 3px; color: #bdd3cc; font-size: 11px; }
nav { display: grid; gap: 7px; margin-top: 25px; }
.nav-item { display: flex; align-items: center; gap: 13px; width: 100%; padding: 13px 14px; border: 0; border-radius: 10px; color: #d5e5e0; background: transparent; text-align: left; }
.nav-item span { display: inline-grid; place-items: center; width: 22px; font-weight: 800; }
.nav-item:hover, .nav-item.active { color: var(--green); background: #f2ead7; font-weight: 800; }
.sidebar-foot { display: flex; justify-content: space-between; margin-top: auto; padding: 16px 10px 0; border-top: 1px solid rgba(255,255,255,.13); color: #bdd3cc; font-size: 12px; }
.sidebar .text-btn { color: white; }
main { min-width: 0; padding: 0 38px 50px; }
.topbar { min-height: 102px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.topbar h2 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: 29px; }
.header-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }
.icon-btn { border: 0; background: transparent; color: var(--ink); font-size: 27px; }
.menu-btn { display: none; }
.page { display: none; }
.page.active { display: block; }
.hero { min-height: 225px; display: flex; align-items: end; justify-content: space-between; gap: 30px; padding: 38px; border-radius: 18px; color: white; background: linear-gradient(120deg, rgba(19,62,52,.98), rgba(38,105,88,.9)), radial-gradient(circle at right, #af8f4c, transparent); box-shadow: var(--shadow); }
.hero h3 { max-width: 650px; margin: 4px 0 13px; font-family: Georgia, "Songti SC", serif; font-size: clamp(28px, 4vw, 43px); font-weight: 500; }
.hero p:last-child { margin-bottom: 0; color: #d5e5e0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; margin: 18px 0; }
.stat-card { position: relative; padding: 22px; overflow: hidden; border: 1px solid #e4e0d6; border-radius: 14px; background: var(--paper); }
.stat-card::after { content: ""; position: absolute; right: -22px; bottom: -30px; width: 85px; height: 85px; border-radius: 50%; background: #eee5d2; opacity: .65; }
.stat-card span { color: var(--muted); font-size: 13px; }
.stat-card strong { display: block; margin-top: 9px; font-family: Georgia, serif; font-size: 30px; }
.content-grid { display: grid; grid-template-columns: 1.45fr 1fr; gap: 18px; }
.panel { padding: 24px; border: 1px solid #e4e0d6; border-radius: 14px; background: var(--paper); }
.panel-head { display: flex; align-items: start; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.panel h3, .panel-head h3 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: 22px; }
.mini-row { display: grid; grid-template-columns: 1fr auto; gap: 15px; padding: 14px 0; border-top: 1px solid #ece9e1; }
.mini-row:first-child { border-top: 0; }
.mini-row strong, .mini-row span { display: block; }
.mini-row span { margin-top: 4px; color: var(--muted); font-size: 12px; }
.money { color: var(--green-2); font-weight: 850; }
.toolbar { display: flex; gap: 12px; margin-bottom: 18px; }
.search-box { position: relative; flex: 1; }
.search-box span { position: absolute; left: 14px; top: 9px; color: var(--muted); font-size: 22px; }
.search-box input { padding-left: 42px; }
.toolbar select { width: 170px; }
.card-list { display: grid; gap: 12px; }
.customer-card { display: grid; grid-template-columns: 1fr auto; gap: 18px; padding: 22px; border: 1px solid #e1ded5; border-radius: 13px; background: var(--paper); transition: .2s; }
.customer-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.customer-main { display: flex; gap: 15px; min-width: 0; }
.avatar { flex: 0 0 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; color: white; background: var(--green-2); font-family: Georgia, serif; font-size: 20px; }
.customer-card h3 { margin: 1px 0 6px; }
.meta-line { display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--muted); font-size: 13px; }
.tag { display: inline-block; padding: 5px 9px; border-radius: 99px; color: var(--green); background: #e5efe9; font-size: 11px; font-weight: 800; }
.card-actions { display: flex; align-items: center; gap: 8px; }
.small-btn { padding: 8px 11px; border: 1px solid var(--line); border-radius: 8px; color: var(--green); background: white; font-weight: 700; }
.danger-btn { color: var(--danger); }
.detail-head { display: flex; justify-content: space-between; gap: 20px; margin: 15px 0 18px; padding: 27px; border-radius: 15px; color: white; background: var(--green); }
.detail-head h2 { margin: 0 0 8px; font-family: Georgia, "Songti SC", serif; }
.detail-actions { display: flex; align-items: start; gap: 8px; }
.detail-actions .small-btn { border-color: rgba(255,255,255,.25); color: white; background: rgba(255,255,255,.1); }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.info-item { padding: 13px 0; border-top: 1px solid #ece9e1; }
.info-item:first-child { border-top: 0; }
.info-item label { color: var(--muted); font-size: 11px; }
.info-item strong { word-break: break-all; }
.info-row { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.order-table-wrap { overflow-x: auto; border: 1px solid #e1ded5; border-radius: 13px; background: var(--paper); }
table { width: 100%; border-collapse: collapse; min-width: 850px; }
th { padding: 13px 16px; color: var(--muted); background: #f0ede5; font-size: 12px; text-align: left; }
td { padding: 16px; border-top: 1px solid #ece9e1; font-size: 13px; vertical-align: top; }
.modal { position: fixed; z-index: 20; inset: 0; display: grid; place-items: center; padding: 20px; background: rgba(11,32,27,.68); }
.modal-card { width: min(780px, 100%); max-height: 92vh; overflow: auto; border-radius: 17px; background: var(--paper); box-shadow: 0 30px 90px rgba(0,0,0,.3); }
.modal-head { position: sticky; z-index: 2; top: 0; display: flex; justify-content: space-between; align-items: start; padding: 23px 27px 17px; border-bottom: 1px solid #e5e1d7; background: var(--paper); }
.modal-head h3 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: 25px; }
#modalForm { padding: 24px 27px 27px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.form-grid .full { grid-column: 1 / -1; }
.repeat-block { margin-top: 17px; padding: 16px; border: 1px solid #dfdbd0; border-radius: 11px; background: #f8f5ee; }
.repeat-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.repeat-item { display: grid; grid-template-columns: 1fr 1fr auto; gap: 9px; margin-top: 9px; }
.repeat-item.address { grid-template-columns: .65fr .65fr .8fr 1.6fr auto; }
.repeat-item.product { grid-template-columns: 1.3fr 1fr .65fr .65fr auto; }
.remove-row { width: 40px; border: 0; border-radius: 8px; color: var(--danger); background: #f4e5e1; font-size: 20px; }
.form-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 23px; padding-top: 18px; border-top: 1px solid #e5e1d7; }
.toast { position: fixed; z-index: 40; left: 50%; bottom: 28px; transform: translate(-50%, 20px); padding: 11px 18px; border-radius: 9px; color: white; background: #102d26; opacity: 0; pointer-events: none; transition: .25s; }
.toast.show { transform: translate(-50%, 0); opacity: 1; }
.empty { padding: 45px 20px; color: var(--muted); text-align: center; }
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 15; left: -260px; width: 245px; transition: .25s; box-shadow: 15px 0 40px rgba(0,0,0,.18); }
  .sidebar.open { left: 0; }
  main { padding: 0 18px 35px; }
  .menu-btn { display: block; }
  .topbar { min-height: 84px; justify-content: flex-start; }
  .header-actions { margin-left: auto; }
  .header-actions .secondary { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .content-grid, .detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .login-card { padding: 32px 23px; }
  .password-row, .toolbar { flex-direction: column; }
  .toolbar select { width: 100%; }
  .hero { min-height: 260px; display: block; padding: 28px 23px; }
  .hero .light-btn { margin-top: 25px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 9px; }
  .stat-card { padding: 17px; }
  .stat-card strong { font-size: clamp(18px, 5.5vw, 24px); letter-spacing: -.02em; white-space: nowrap; }
  .customer-card { grid-template-columns: 1fr; }
  .card-actions { justify-content: flex-end; }
  .detail-head { display: block; }
  .detail-actions { margin-top: 18px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .full { grid-column: auto; }
  .repeat-item, .repeat-item.address, .repeat-item.product { grid-template-columns: 1fr; padding-bottom: 13px; border-bottom: 1px solid #ddd7ca; }
  .remove-row { width: 100%; height: 34px; }
}