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

:root {
    --zq-deep: #0e4f4a;
    --zq-teal: #17786f;
    --zq-amber: #f0a202;
    --zq-amber-soft: #ffd479;
    --zq-ink: #12211f;
    --zq-mute: #5a6f6b;
    --zq-paper: #f4faf8;
    --zq-tint: #e7f3f0;
    --zq-panel: #ffffff;
    --zq-edge: #d7e8e3;
    --zq-head: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --zq-body: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    --zq-r1: 4px;
    --zq-r2: 8px;
    --zq-r3: 10px;
    --zq-lift1: 0 2px 6px rgba(14, 79, 74, .06);
    --zq-lift2: 0 10px 26px rgba(14, 79, 74, .10);
    --zq-lift3: 0 18px 44px rgba(14, 79, 74, .14);
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--zq-body);
    background:
        radial-gradient(circle at 88% -6%, rgba(23, 120, 111, .14), transparent 42%),
        linear-gradient(180deg, #f4faf8 0%, #e7f3f0 100%);
    color: var(--zq-ink);
    line-height: 1.7;
    font-size: 16px;
}

a {
    color: var(--zq-teal);
    text-decoration: none;
    transition: color .2s ease;
}
a:hover { color: var(--zq-amber); }

/* ---------- header ---------- */
.zq-header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 14px 20px;
    background: rgba(244, 250, 248, .92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--zq-edge);
}
.zq-header__inner {
    max-width: 1140px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.zq-header__brand {
    font-family: var(--zq-head);
    font-size: 20px;
    font-weight: 700;
    letter-spacing: .02em;
    color: var(--zq-deep);
}
.zq-header__brand:hover { color: var(--zq-teal); }

/* ---------- document lead ---------- */
.zq-doc-hero {
    max-width: 1140px;
    margin: 0 auto;
    padding: 46px 20px 26px;
    border-bottom: 1px solid var(--zq-edge);
}
.zq-doc-hero__tag {
    display: inline-block;
    padding: 5px 12px;
    border-radius: var(--zq-r1);
    background: var(--zq-deep);
    color: #f4faf8;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .16em;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.zq-doc-hero__title {
    max-width: 780px;
    font-family: var(--zq-head);
    font-size: clamp(28px, 4.4vw, 46px);
    font-weight: 700;
    line-height: 1.14;
    letter-spacing: -.01em;
    color: var(--zq-deep);
    margin-bottom: 12px;
}
.zq-doc-hero__accent {
    color: var(--zq-teal);
    background-image: linear-gradient(to bottom,
        rgba(240, 162, 2, .95) 0,
        rgba(240, 162, 2, .95) .09em,
        transparent .09em,
        transparent .18em,
        rgba(240, 162, 2, .5) .18em,
        rgba(240, 162, 2, .5) .28em);
    background-repeat: no-repeat;
    background-size: 100% .28em;
    background-position: 0 100%;
    padding-bottom: .06em;
}
.zq-doc-hero__sub {
    max-width: 640px;
    color: var(--zq-mute);
    font-size: 16px;
}
.zq-doc-hero__stamp {
    margin-top: 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--zq-teal);
}

/* ---------- two-column layout ---------- */
.zq-doc {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px 70px;
}
.zq-doc__grid {
    display: grid;
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
    padding-top: 32px;
}

.zq-aside { position: sticky; top: 74px; }
.zq-toc {
    background: var(--zq-panel);
    border: 1px solid var(--zq-edge);
    border-top: 3px solid var(--zq-amber);
    border-radius: var(--zq-r2);
    box-shadow: var(--zq-lift1);
    padding: 18px 18px 14px;
}
.zq-toc__title {
    font-family: var(--zq-head);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--zq-mute);
    margin-bottom: 10px;
}
.zq-toc__list { list-style: none; counter-reset: zqtoc; }
.zq-toc__item { border-top: 1px solid var(--zq-edge); }
.zq-toc__item:first-child { border-top: 0; }
.zq-toc__link {
    display: flex;
    gap: 10px;
    padding: 9px 0;
    font-size: 14px;
    line-height: 1.45;
    color: var(--zq-ink);
    counter-increment: zqtoc;
}
.zq-toc__link::before {
    content: counter(zqtoc, decimal-leading-zero);
    flex: none;
    font-family: var(--zq-head);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .04em;
    color: var(--zq-amber);
    padding-top: 3px;
}
.zq-toc__link:hover { color: var(--zq-teal); }

@media (max-width: 900px) {
    .zq-doc__grid { grid-template-columns: minmax(0, 1fr); gap: 24px; padding-top: 22px; }
    .zq-aside { position: static; }
    .zq-toc { border-top-width: 3px; padding: 14px 14px 12px; }
    .zq-toc__list {
        display: flex;
        flex-wrap: nowrap;
        gap: 8px;
        overflow-x: auto;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch;
    }
    .zq-toc__item { border-top: 0; flex: none; }
    .zq-toc__link {
        padding: 7px 12px;
        white-space: nowrap;
        border: 1px solid var(--zq-edge);
        border-radius: 999px;
        background: var(--zq-tint);
        font-size: 13px;
    }
}

/* ---------- sections ---------- */
.zq-main { min-width: 0; }
.zq-sect {
    background: var(--zq-panel);
    border: 1px solid var(--zq-edge);
    border-radius: var(--zq-r3);
    box-shadow: var(--zq-lift1);
    padding: 26px 30px 22px;
    margin-bottom: 18px;
    scroll-margin-top: 84px;
}
.zq-sect__title {
    display: flex;
    align-items: baseline;
    gap: 12px;
    font-family: var(--zq-head);
    font-size: clamp(19px, 2.6vw, 25px);
    font-weight: 700;
    line-height: 1.24;
    color: var(--zq-deep);
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--zq-edge);
}
.zq-sect__num {
    flex: none;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .06em;
    color: var(--zq-amber);
}
.zq-sect__sub {
    font-family: var(--zq-head);
    font-size: 16px;
    font-weight: 700;
    color: var(--zq-ink);
    margin: 18px 0 8px;
}
.zq-sect p { color: var(--zq-mute); margin-bottom: 12px; }
.zq-sect p:last-child { margin-bottom: 0; }
.zq-sect strong { color: var(--zq-ink); font-weight: 700; }

.zq-list {
    list-style: none;
    margin: 0 0 14px;
    color: var(--zq-mute);
}
.zq-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 7px;
}
.zq-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .62em;
    width: 8px;
    height: 2px;
    background: var(--zq-amber);
}
.zq-list--check li::before {
    top: .45em;
    width: 9px;
    height: 5px;
    background: none;
    border-left: 2px solid var(--zq-teal);
    border-bottom: 2px solid var(--zq-teal);
    transform: rotate(-45deg);
}

@media (max-width: 620px) {
    .zq-sect { padding: 20px 18px 18px; border-radius: var(--zq-r2); }
    .zq-doc-hero { padding-top: 34px; }
}

/* ---------- cards ---------- */
.zq-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin: 16px 0 18px;
}
.zq-card {
    background: var(--zq-tint);
    border: 1px solid var(--zq-edge);
    border-left: 3px solid var(--zq-teal);
    border-radius: var(--zq-r1);
    padding: 14px 16px;
}
.zq-card__title {
    font-family: var(--zq-head);
    font-size: 14px;
    font-weight: 700;
    color: var(--zq-deep);
    margin-bottom: 4px;
}
.zq-card__text { font-size: 14px; line-height: 1.6; color: var(--zq-mute); }

/* ---------- note ---------- */
.zq-note {
    margin: 16px 0 18px;
    padding: 16px 18px;
    border: 1px solid rgba(240, 162, 2, .45);
    border-left: 4px solid var(--zq-amber);
    border-radius: var(--zq-r1);
    background: #fff9ec;
}
.zq-note p { margin: 0; color: var(--zq-ink); font-size: 15px; }

/* ---------- table ---------- */
.zq-table-wrap { overflow-x: auto; margin: 16px 0 18px; }
.zq-table {
    width: 100%;
    min-width: 420px;
    border-collapse: collapse;
    border: 1px solid var(--zq-edge);
    border-radius: var(--zq-r1);
    overflow: hidden;
    background: var(--zq-panel);
}
.zq-table th {
    background: var(--zq-deep);
    color: #eaf5f2;
    text-align: left;
    padding: 11px 14px;
    font-family: var(--zq-head);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .04em;
}
.zq-table td {
    padding: 11px 14px;
    border-top: 1px solid var(--zq-edge);
    color: var(--zq-mute);
    font-size: 15px;
}
.zq-table tr:nth-child(even) td { background: var(--zq-paper); }

/* ---------- steps ---------- */
.zq-steps {
    counter-reset: zqstep;
    display: grid;
    gap: 10px;
    margin: 16px 0 18px;
}
.zq-step {
    position: relative;
    counter-increment: zqstep;
    padding: 14px 16px 14px 56px;
    border: 1px solid var(--zq-edge);
    border-radius: var(--zq-r1);
    background: var(--zq-paper);
}
.zq-step::before {
    content: counter(zqstep);
    position: absolute;
    left: 16px;
    top: 13px;
    width: 26px;
    height: 26px;
    border-radius: var(--zq-r1);
    display: grid;
    place-items: center;
    background: var(--zq-teal);
    color: #fff;
    font-family: var(--zq-head);
    font-size: 13px;
    font-weight: 700;
}
.zq-step__title {
    font-family: var(--zq-head);
    font-size: 14px;
    font-weight: 700;
    color: var(--zq-deep);
    margin-bottom: 2px;
}
.zq-step__text { font-size: 14px; line-height: 1.6; color: var(--zq-mute); }

/* ---------- footer ---------- */
.zq-footer {
    margin-top: 10px;
    padding: 26px 20px 22px;
    background: var(--zq-deep);
    border-top: 4px solid var(--zq-amber);
    color: #b9d3ce;
}
.zq-footer__inner { max-width: 900px; margin: 0 auto; text-align: center; }
.zq-footer__nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px 22px;
    margin-bottom: 12px;
}
.zq-footer__nav a {
    color: #d8ece8;
    font-size: 12px;
    font-weight: 600;
    border-bottom: 1px solid rgba(240, 162, 2, .45);
    padding-bottom: 2px;
}
.zq-footer__nav a:hover { color: var(--zq-amber); }
.zq-footer__note { font-size: 12px; color: #9dbcb6; margin-bottom: 8px; }
.zq-footer__note--legal {
    max-width: 720px;
    margin: 0 auto;
    font-size: 11px;
    line-height: 1.7;
    color: #86a7a1;
}