:root {
    --ink: #17212b;
    --muted: #687582;
    --soft: #eef2f5;
    --line: #dfe6eb;
    --paper: #ffffff;
    --canvas: #f5f7f9;
    --teal: #0f766e;
    --teal-soft: #e6f5f2;
    --blue: #2563eb;
    --blue-soft: #eaf0ff;
    --orange: #ea6c2f;
    --orange-soft: #fff0e8;
    --purple: #7856c9;
    --purple-soft: #f0edff;
    --shadow: 0 10px 30px rgba(25, 47, 66, .06);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--canvas);
    font: 14px/1.5 "Microsoft Yahei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

button, input { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }

.app-header {
    height: 72px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    width: min(1240px, calc(100% - 48px));
    height: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 48px;
}

.brand { display: inline-flex; align-items: center; gap: 11px; min-width: 202px; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; color: #fff; background: var(--teal); border-radius: 9px; font-size: 17px; }
.brand-copy { display: grid; gap: 1px; }
.brand-copy strong { font-size: 17px; line-height: 1.15; letter-spacing: 0; }
.brand-copy small { color: var(--muted); font-size: 11px; }

.main-nav { display: flex; align-items: stretch; height: 100%; gap: 27px; }
.main-nav a { position: relative; display: inline-flex; align-items: center; color: #5d6975; font-size: 14px; }
.main-nav a:hover, .main-nav a.active { color: var(--teal); }
.main-nav a.active::after { position: absolute; right: 0; bottom: 0; left: 0; height: 3px; background: var(--teal); content: ""; }

.header-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.icon-button, .account-button { border: 1px solid var(--line); background: var(--paper); color: #5c6a75; }
.icon-button { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 6px; }
.icon-button:hover { border-color: #aab8c2; color: var(--ink); }
.account-button { display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 13px; border-radius: 6px; }
.account-button:hover { color: var(--teal); border-color: #9fcfc9; }

main { width: min(1240px, calc(100% - 48px)); margin: 0 auto; }
.intro-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; padding: 40px 0 27px; }
.eyebrow, .panel-kicker { margin: 0; color: var(--teal); font-size: 11px; font-weight: 700; letter-spacing: .7px; }
.eyebrow { display: flex; align-items: center; gap: 7px; text-transform: uppercase; }
h1, h2, h3, p { margin: 0; }
h1 { margin-top: 7px; font-size: 30px; line-height: 1.2; letter-spacing: 0; }
.intro-copy { margin-top: 8px; color: var(--muted); }
.trust-list { display: flex; align-items: center; gap: 18px; padding-bottom: 3px; color: #65727d; font-size: 12px; white-space: nowrap; }
.trust-list span { display: inline-flex; align-items: center; gap: 6px; }
.trust-list i { color: var(--teal); }

.work-grid { display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: 18px; align-items: start; }
.category-panel, .quote-panel, .records-panel, .rules-panel { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); }
.category-panel { min-height: 546px; padding: 24px 16px 17px; }
.panel-heading, .quote-heading, .section-heading, .form-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.panel-heading h2, .quote-heading h2, .section-heading h2 { margin-top: 4px; font-size: 18px; line-height: 1.25; }
.category-count { padding-top: 18px; color: #9aa7b0; font-size: 12px; }
.category-list { display: grid; gap: 7px; margin-top: 23px; }
.category-button { display: grid; grid-template-columns: 34px 1fr 12px; align-items: center; gap: 10px; min-height: 62px; width: 100%; padding: 7px 9px; color: var(--ink); text-align: left; background: transparent; border: 1px solid transparent; border-radius: 6px; }
.category-button:hover { background: #f6faf9; }
.category-button.active { background: var(--teal-soft); border-color: #c5e5df; }
.category-button strong, .category-button small { display: block; }
.category-button strong { font-size: 14px; }
.category-button small { margin-top: 2px; color: var(--muted); font-size: 11px; }
.category-icon { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 7px; }
.category-icon.teal, .record-dot.teal { color: var(--teal); background: var(--teal-soft); }
.category-icon.blue, .record-dot.blue { color: var(--blue); background: var(--blue-soft); }
.category-icon.orange, .record-dot.orange { color: var(--orange); background: var(--orange-soft); }
.category-icon.purple, .record-dot.purple { color: var(--purple); background: var(--purple-soft); }
.arrow { color: #9aa7b0; }
.category-button.active .arrow { color: var(--teal); }
.side-note { display: flex; gap: 8px; margin-top: 48px; padding: 12px 10px; color: #82909b; background: #f7f9fa; border-radius: 5px; font-size: 11px; line-height: 1.65; }
.side-note i { padding-top: 2px; color: #8fa0ac; }

.quote-panel { padding: 24px 24px 20px; }
.quote-state { display: inline-flex; align-items: center; gap: 6px; padding-top: 17px; color: #75818b; font-size: 12px; }
.quote-state i { color: #38a169; font-size: 8px; }
.selected-category { display: flex; align-items: center; justify-content: space-between; margin-top: 21px; padding-bottom: 11px; border-bottom: 1px solid var(--line); }
.selected-category > span:first-child { font-size: 15px; font-weight: 700; }
.selected-rate { color: #7b8993; font-size: 12px; }
.selected-rate strong { margin-left: 4px; color: var(--teal); font-size: 14px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; padding: 15px 0 21px; }
.product-card { display: grid; grid-template-columns: 39px 1fr auto; align-items: center; gap: 10px; min-height: 70px; padding: 9px 10px; color: var(--ink); background: #fbfcfd; border: 1px solid var(--line); border-radius: 6px; text-align: left; }
.product-card:hover { border-color: #a8cfc8; background: #f7fbfa; }
.product-card.selected { border-color: var(--teal); background: #f1faf8; box-shadow: 0 0 0 2px rgba(15,118,110,.1); }
.product-logo { display: grid; place-items: center; width: 39px; height: 39px; color: #fff; border-radius: 7px; font-size: 12px; font-weight: 700; }
.product-card .product-name { min-width: 0; }
.product-name strong, .product-name small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.product-name strong { font-size: 13px; }
.product-name small { margin-top: 4px; color: var(--muted); font-size: 11px; }
.card-rate { color: var(--teal); font-size: 12px; font-weight: 700; white-space: nowrap; }

.quote-form-wrap { padding-top: 19px; border-top: 1px solid var(--line); }
.form-heading h3 { margin-top: 4px; font-size: 16px; }
.required-tip { padding-top: 16px; color: #9aa7b0; font-size: 11px; }
.required-tip b, .field b { color: #e25e3f; font-weight: 400; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr 1.32fr; gap: 12px; margin-top: 17px; }
.field { display: grid; gap: 7px; color: #65727d; font-size: 12px; }
.number-input, .text-input { display: flex; align-items: center; height: 42px; padding: 0 12px; background: #fbfcfd; border: 1px solid var(--line); border-radius: 5px; }
.number-input:focus-within, .text-input:focus-within { border-color: #8fc7c0; box-shadow: 0 0 0 3px rgba(15,118,110,.08); }
.number-input em { color: #8b98a2; font-style: normal; }
.number-input input, .text-input input { min-width: 0; width: 100%; padding: 0 5px; color: var(--ink); background: transparent; border: 0; outline: 0; }
.number-input input::-webkit-outer-spin-button, .number-input input::-webkit-inner-spin-button { margin: 0; -webkit-appearance: none; }
.text-input i { margin-right: 7px; color: #8a9aa5; }

.summary-bar { display: flex; align-items: center; gap: 22px; margin-top: 19px; padding: 14px 15px; background: #f7f9fa; border: 1px solid #e6ecef; border-radius: 6px; }
.summary-item { display: grid; gap: 3px; min-width: 105px; }
.summary-item small { color: var(--muted); font-size: 11px; }
.summary-item strong { font-size: 17px; }
.summary-item .highlight, .summary-item strong.highlight { color: var(--teal); }
.summary-divider { width: 1px; height: 30px; background: #dbe4e8; }
.primary-action { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-width: 144px; height: 40px; margin-left: auto; color: #fff; background: var(--teal); border: 0; border-radius: 5px; font-weight: 700; }
.primary-action:hover { background: #0b635d; }
.form-message { min-height: 18px; margin: 8px 2px 0; color: #c55d3d; font-size: 12px; }

.lower-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(300px, 1fr); gap: 18px; margin: 18px 0 38px; }
.records-panel, .rules-panel { padding: 23px 24px 18px; }
.section-heading a { align-self: flex-end; color: var(--teal); font-size: 12px; }
.section-heading a:hover { color: #0b635d; }
.section-heading > i { align-self: flex-end; color: #8da0a9; font-size: 18px; }
.record-table { margin-top: 19px; }
.record-row { display: grid; grid-template-columns: 1.6fr 1.1fr 1fr .75fr; align-items: center; min-height: 47px; border-top: 1px solid #edf1f3; color: #6b7882; font-size: 12px; }
.record-row > * { min-width: 0; }
.record-row strong { color: var(--ink); font-size: 13px; }
.record-head { min-height: 32px; border-top: 0; color: #9aa7b0; font-size: 11px; }
.record-dot { display: inline-block; width: 8px; height: 8px; margin-right: 8px; border-radius: 50%; vertical-align: 1px; }
.status { justify-self: start; padding: 3px 7px; border-radius: 3px; font-size: 11px; font-weight: 400; }
.status.done { color: #27836f; background: #e8f6f1; }
.status.pending { color: #b87927; background: #fff4df; }
.rule-list { display: grid; gap: 16px; margin-top: 20px; }
.rule-list li { display: grid; grid-template-columns: 29px 1fr; gap: 10px; align-items: start; }
.rule-list li > span { color: var(--teal); font: 700 11px/23px Arial, sans-serif; }
.rule-list p { color: #6b7882; font-size: 12px; line-height: 1.75; }
.support-link { display: inline-flex; align-items: center; gap: 7px; margin-top: 19px; color: var(--teal); font-size: 12px; }
.support-link:hover { color: #0b635d; }

.app-footer { display: flex; justify-content: space-between; width: min(1240px, calc(100% - 48px)); margin: 0 auto; padding: 19px 0 25px; color: #84919b; border-top: 1px solid var(--line); font-size: 11px; }
.app-footer div { display: flex; gap: 15px; }
.app-footer span:first-child { color: #53626d; font-weight: 700; }

.modal-backdrop { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; padding: 24px; background: rgba(23, 33, 43, .44); }
.modal-backdrop[hidden] { display: none; }
.result-modal { position: relative; width: min(420px, 100%); padding: 34px 36px 25px; text-align: center; background: var(--paper); border-radius: 9px; box-shadow: 0 20px 55px rgba(23,33,43,.2); }
.modal-close { position: absolute; top: 12px; right: 12px; display: grid; place-items: center; width: 30px; height: 30px; color: #8c99a2; background: transparent; border: 0; border-radius: 4px; }
.modal-close:hover { color: var(--ink); background: #f3f6f7; }
.success-mark { display: grid; place-items: center; width: 51px; height: 51px; margin: 0 auto 17px; color: var(--teal); background: var(--teal-soft); border-radius: 50%; font-size: 22px; }
.result-modal h2 { margin-top: 7px; font-size: 20px; }
.result-copy { margin-top: 8px; color: var(--muted); font-size: 12px; }
.request-code { display: grid; gap: 4px; margin-top: 21px; padding: 12px; background: #f6f8f9; border-radius: 5px; }
.request-code small { color: #8b98a2; font-size: 11px; }
.request-code strong { color: var(--ink); font-size: 17px; letter-spacing: 1px; }
.result-meta { display: flex; justify-content: center; gap: 24px; margin-top: 16px; color: #7c8993; font-size: 12px; }
.result-meta strong { margin-left: 3px; color: var(--teal); }
.secondary-action { display: inline-flex; align-items: center; justify-content: center; gap: 8px; width: 100%; height: 40px; margin-top: 22px; color: var(--teal); background: var(--paper); border: 1px solid #9ecfc8; border-radius: 5px; }
.secondary-action:hover { background: var(--teal-soft); }
.static-disclaimer { margin-top: 13px; color: #a4afb6; font-size: 11px; }

@media (max-width: 960px) {
    .header-inner, main, .app-footer { width: min(100% - 32px, 760px); }
    .header-inner { gap: 20px; }
    .brand { min-width: auto; }
    .main-nav { gap: 15px; }
    .main-nav a { font-size: 13px; }
    .header-actions .account-button span { display: none; }
    .work-grid { grid-template-columns: 1fr; }
    .category-panel { min-height: 0; }
    .category-list { grid-template-columns: repeat(4, 1fr); }
    .category-button { grid-template-columns: 31px 1fr; }
    .category-button .arrow { display: none; }
    .side-note { margin-top: 20px; }
}

@media (max-width: 680px) {
    .app-header { height: auto; }
    .header-inner { flex-wrap: wrap; gap: 12px; padding: 14px 0 0; }
    .brand { margin-right: auto; }
    .main-nav { order: 3; width: 100%; height: 43px; gap: 24px; overflow-x: auto; }
    .main-nav a { white-space: nowrap; }
    .intro-row { display: block; padding: 29px 0 22px; }
    .trust-list { flex-wrap: wrap; gap: 8px 14px; margin-top: 17px; white-space: normal; }
    h1 { font-size: 26px; }
    .category-list { grid-template-columns: repeat(2, 1fr); }
    .quote-panel { padding: 20px 16px 16px; }
    .quote-state { font-size: 11px; }
    .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .product-card { grid-template-columns: 33px 1fr; }
    .product-logo { width: 33px; height: 33px; font-size: 10px; }
    .card-rate { display: none; }
    .form-grid { grid-template-columns: 1fr 1fr; }
    .field:last-child { grid-column: 1 / -1; }
    .summary-bar { flex-wrap: wrap; gap: 14px; }
    .summary-divider { display: none; }
    .primary-action { width: 100%; margin-left: 0; }
    .lower-grid { grid-template-columns: 1fr; }
    .records-panel, .rules-panel { padding: 20px 16px 16px; }
    .record-row { grid-template-columns: 1.5fr 1fr .85fr; }
    .record-row > :nth-child(2) { display: none; }
    .app-footer { display: grid; gap: 7px; padding-bottom: 20px; }
}

@media (max-width: 420px) {
    .header-actions .icon-button { display: none; }
    .main-nav { gap: 17px; }
    .category-button { padding: 7px 6px; gap: 7px; }
    .category-button strong { font-size: 13px; }
    .category-button small { font-size: 10px; }
    .form-grid { grid-template-columns: 1fr; }
    .field:last-child { grid-column: auto; }
    .summary-item { min-width: 90px; }
}