/* 沈阳乐贵欧商贸有限公司 · 沈抚课时馆配 */
:root {
    color-scheme: light;
    --paper: #f3efe6;
    --ink: #1c1915;
    --navy: #102a3c;
    --sea: #1f4e68;
    --copper: #c65a28;
    --sand: #e7dccb;
    --line: #ddd2c2;
    --muted: #5c564e;
    --card: #fffdf8;
    --max: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scrollbar-gutter: stable; }

body {
    font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--paper);
    color: var(--ink);
    font-size: 16px;
    line-height: 1.7;
}

img { max-width: 100%; height: auto; }

a { color: var(--sea); }
a:hover { color: var(--copper); }

h1, h2, h3 {
    font-weight: 720;
    line-height: 1.28;
    letter-spacing: 0;
}

.skip {
    position: absolute;
    left: 8px;
    top: -48px;
    background: var(--copper);
    color: #fff;
    padding: 8px 12px;
    z-index: 50;
}
.skip:focus { top: 8px; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--copper);
    outline-offset: 2px;
}

.frame {
    width: min(var(--max), calc(100% - 40px));
    margin: 0 auto;
}

.top {
    position: sticky;
    top: 0;
    z-index: 20;
    background: #fffdf8;
    border-bottom: 3px solid var(--copper);
}

.top-meta {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 6px 0;
    font-size: 0.78rem;
    color: var(--muted);
    border-bottom: 1px solid var(--line);
}

.top-meta a { color: var(--navy); text-decoration: none; font-weight: 700; }

.top-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 74px;
    gap: 18px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--navy);
}

.logo-seal {
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
    display: grid;
    place-items: center;
    background: var(--navy);
    color: #fff;
    font-weight: 800;
    font-size: 1.15rem;
}

.logo-text strong {
    display: block;
    font-size: clamp(0.95rem, 2vw, 1.08rem);
    line-height: 1.25;
}

.logo-text small {
    display: block;
    margin-top: 2px;
    font-size: 0.75rem;
    letter-spacing: 0.16em;
    color: var(--copper);
}

.menu ul {
    display: flex;
    gap: 20px;
    list-style: none;
    flex-wrap: wrap;
}

.menu a {
    text-decoration: none;
    color: var(--ink);
    font-weight: 680;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
}

.menu a[aria-current="page"] {
    color: var(--copper);
    border-bottom-color: var(--copper);
}

.nav-toggle {
    display: none;
    min-height: 40px;
    padding: 0 14px;
    background: transparent;
    border: 1px solid var(--navy);
    color: var(--navy);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.intro { padding: 48px 0 28px; }

.intro-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 36px;
    align-items: center;
}

.kicker {
    color: var(--copper);
    font-weight: 800;
    letter-spacing: 0.12em;
    font-size: 0.78rem;
    margin-bottom: 10px;
}

.intro h1,
.page-hero h1,
.page-plain h1 {
    font-size: clamp(1.9rem, 4.2vw, 3rem);
    max-width: 12em;
}

.lede {
    max-width: 38rem;
    margin-top: 14px;
    color: var(--muted);
    font-size: 1.05rem;
}

.cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 22px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 18px;
    background: var(--navy);
    color: #fff;
    text-decoration: none;
    font: inherit;
    font-weight: 720;
    border: 1px solid var(--navy);
    cursor: pointer;
}

.btn:hover { background: var(--sea); color: #fff; border-color: var(--sea); }

.btn-ghost {
    background: transparent;
    color: var(--navy);
}

.btn-ghost:hover { background: var(--navy); color: #fff; }

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
    list-style: none;
}

.tags li {
    padding: 5px 10px;
    background: var(--sand);
    font-size: 0.86rem;
}

.intro-photo {
    background: var(--sand);
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.intro-photo picture,
.intro-photo img,
.rowcard-photo picture,
.rowcard-photo img,
.cell-photo picture,
.cell-photo img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.stats { background: var(--navy); color: #f4f7f8; margin-top: 28px; }

.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.stats p { padding: 18px 16px 18px 0; }

.stats strong {
    display: block;
    color: #f3c2a4;
    font-size: 1.05rem;
}

.stats span {
    display: block;
    margin-top: 4px;
    color: #d5e0e6;
    font-size: 0.86rem;
}

.band { padding: 64px 0; }

.band + .band { padding-top: 0; }

.below {
    content-visibility: auto;
    contain-intrinsic-size: auto 680px;
}

.band-head { max-width: 40rem; margin-bottom: 20px; }

.band-head h2,
.prose h2 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); }

.band-head p { margin-top: 8px; color: var(--muted); }

.stack { display: flex; flex-direction: column; gap: 12px; }

.rowcard,
.cell,
.memo {
    display: grid;
    background: var(--card);
    color: inherit;
    text-decoration: none;
    border: 1px solid var(--line);
}

.rowcard { grid-template-columns: 280px 1fr; }

.rowcard:hover,
.cell:hover,
.memo:hover { border-color: var(--copper); color: inherit; }

.rowcard-photo { aspect-ratio: 3 / 2; background: var(--sand); overflow: hidden; }

.rowcard-body,
.cell-body { padding: 16px 18px 18px; }

.idx {
    display: block;
    color: var(--copper);
    font-weight: 800;
    letter-spacing: 0.14em;
    font-size: 0.78rem;
}

.rowcard-body h3,
.cell-body h3,
.lane h3,
.memo h3 { font-size: 1.18rem; margin: 4px 0 6px; }

.rowcard-body p,
.cell-body p,
.lane p,
.memo p { color: var(--muted); font-size: 0.95rem; }

.go { display: inline-block; margin-top: 8px; font-weight: 720; color: var(--sea); }

.lanes,
.memos,
.grid2 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.grid2 { grid-template-columns: 1fr 1fr; }

.lane,
.memo { background: var(--card); border: 1px solid var(--line); padding: 18px 16px 20px; }

.lane { border-top: 3px solid var(--copper); }

.memo time {
    display: block;
    color: var(--copper);
    font-size: 0.8rem;
    font-weight: 750;
    margin-bottom: 6px;
}

.desk { background: var(--navy); color: #f4f7f8; padding: 48px 0; }

.desk-grid {
    display: grid;
    grid-template-columns: 1.4fr auto;
    gap: 24px;
    align-items: center;
}

.desk h2 { font-size: 1.7rem; margin-bottom: 8px; }

.desk a { color: #f3c2a4; }

.desk p + p { margin-top: 8px; }

.desk .btn { background: var(--copper); border-color: var(--copper); color: #fff; }
.desk .btn:hover { background: #a8481c; border-color: #a8481c; color: #fff; }
.desk .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.7); }
.desk .btn-ghost:hover { background: #fff; color: var(--navy); }

.page-hero,
.page-plain { color: #f4f7f8; background: var(--navy); }

.page-hero {
    padding: 52px 0 42px;
    background-color: #0c2233;
    background-image:
        linear-gradient(105deg, rgba(12, 34, 51, 0.9) 8%, rgba(12, 34, 51, 0.55) 100%),
        url("https://yzajg.com/static/image/bg-floor.jpg");
    background-size: cover;
    background-position: center;
}

@supports (background-image: image-set(url("x") type("image/webp"))) {
    .page-hero {
        background-image:
            linear-gradient(105deg, rgba(12, 34, 51, 0.9) 8%, rgba(12, 34, 51, 0.55) 100%),
            image-set(
                url("https://yzajg.com/static/image/bg-floor.webp") type("image/webp"),
                url("https://yzajg.com/static/image/bg-floor.jpg") type("image/jpeg")
            );
    }
}

.page-plain { padding: 40px 0 28px; }

.page-hero .btn { background: var(--copper); border-color: var(--copper); color: #fff; }
.page-hero .btn:hover { background: #a8481c; border-color: #a8481c; color: #fff; }
.page-hero .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.75); }
.page-hero .btn-ghost:hover { background: #fff; color: var(--navy); }

.page-hero .kicker,
.page-plain .kicker { color: #f3c2a4; }

.page-hero .lede,
.page-plain .lede { color: #d5e0e6; }

.page-hero h1,
.page-plain h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }

.sheet { padding: 32px 0 72px; }

.crumb { margin-bottom: 16px; color: var(--muted); font-size: 0.88rem; }
.crumb a { font-weight: 720; text-decoration: none; }

.product {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    gap: 28px;
    align-items: start;
}

.figure {
    margin: 0;
    background: var(--card);
    border: 1px solid var(--line);
}

.figure img { display: block; width: 100%; height: auto; }

.figure figcaption {
    padding: 8px 12px 12px;
    color: var(--muted);
    font-size: 0.8rem;
}

.prose h2 { margin: 26px 0 10px; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: #2a261f; }
.prose ul { margin: 8px 0 0 1.15rem; }
.prose li + li { margin-top: 6px; }

.table-wrap {
    overflow-x: auto;
    margin-top: 12px;
    background: var(--card);
    border: 1px solid var(--line);
}

table { width: 100%; border-collapse: collapse; font-size: 0.94rem; }

th, td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

th { background: var(--sand); font-weight: 720; white-space: nowrap; }

.facts th { width: 28%; background: transparent; white-space: nowrap; }

.related {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    margin-top: 22px;
}

.related a { font-weight: 720; text-decoration: none; }

.split {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 28px;
    align-items: start;
}

.cell { grid-template-columns: 1fr; }
.cell-photo { aspect-ratio: 3 / 2; background: var(--sand); overflow: hidden; }

.form {
    background: var(--card);
    border: 1px solid var(--line);
    padding: 20px 18px 22px;
}

.form h2 { font-size: 1.3rem; margin-bottom: 8px; }

.form label {
    display: block;
    margin-top: 14px;
    font-size: 0.88rem;
    font-weight: 720;
}

.req { color: var(--copper); }

.form input,
.form select,
.form textarea {
    width: 100%;
    margin-top: 6px;
    padding: 10px 12px;
    border: 1px solid #cfc4b4;
    background: #fff;
    color: var(--ink);
    font: inherit;
}

.form textarea { min-height: 130px; resize: vertical; }

.check {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    margin-top: 16px;
    font-weight: 500;
    font-size: 0.88rem;
}

.check input { width: auto; margin-top: 4px; }

.form .btn { margin-top: 18px; }

.note { margin-top: 12px; color: var(--muted); font-size: 0.84rem; }

.trap {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.entry + .entry {
    margin-top: 28px;
    padding-top: 28px;
    border-top: 1px solid var(--line);
}

.entry time {
    display: block;
    margin: 6px 0 8px;
    color: var(--copper);
    font-size: 0.84rem;
    font-weight: 750;
}

.narrow { max-width: 740px; }

.foot {
    background: #0c2233;
    color: #d5e0e6;
    padding: 32px 0 20px;
}

.foot-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr;
    gap: 22px;
}

.foot strong { color: #fff; }

.foot a { color: #f3c2a4; text-decoration: none; }
.foot a:hover { text-decoration: underline; }

.foot-links { display: flex; flex-direction: column; gap: 6px; }

.foot-end {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    color: #b7c6d0;
    font-size: 0.8rem;
}

@media (max-width: 980px) {
    .intro-grid,
    .product,
    .split,
    .desk-grid,
    .foot-grid,
    .stats-row { grid-template-columns: 1fr; }
    .lanes, .memos { grid-template-columns: 1fr 1fr; }
    .stats p { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
}

@media (max-width: 880px) {
    .nav-toggle { display: inline-flex; }
    .menu { display: none; width: 100%; }
    .menu.is-open { display: block; }
    .top-main { flex-wrap: wrap; padding: 10px 0; }
    .menu ul { flex-direction: column; gap: 4px; padding: 4px 0 12px; }
    .top-meta .addr { display: none; }
    .rowcard { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .frame { width: min(var(--max), calc(100% - 28px)); }
    .band { padding: 44px 0; }
    .lanes, .memos, .grid2 { grid-template-columns: 1fr; }
    .intro { padding-top: 28px; }
}

@media (prefers-reduced-motion: reduce) {
    .rowcard, .cell, .memo { transition: none; }
}