.guides-page {
    background: #fff;
}

.guides-hero {
    position: relative;
    padding: 166px 0 110px;
    background:
        radial-gradient(circle at 78% 20%, rgba(108, 195, 247, 0.22), transparent 30rem),
        radial-gradient(circle at 15% 8%, rgba(238, 173, 115, 0.12), transparent 23rem),
        linear-gradient(180deg, #fbfbfd, #f5f5f7);
    overflow: hidden;
}

.guides-hero::after {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    height: 110px;
    background: linear-gradient(transparent, #fff);
    content: "";
    pointer-events: none;
}

.guides-hero-inner {
    position: relative;
    z-index: 1;
    max-width: 940px;
    text-align: center;
}

.guides-kicker {
    width: fit-content;
    margin: 0 auto 28px;
    padding: 8px 13px;
    border: 1px solid rgba(8, 123, 210, 0.12);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--blue);
    font-size: 12px;
    font-weight: 680;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.guides-hero h1 {
    margin: 0;
    font-size: clamp(60px, 7.8vw, 100px);
    font-weight: 700;
    letter-spacing: -0.072em;
    line-height: 0.94;
}

.guides-hero h1 span {
    color: #929297;
}

.guides-hero p {
    max-width: 690px;
    margin: 31px auto 0;
    color: var(--muted);
    font-size: 20px;
    line-height: 1.55;
    letter-spacing: -0.018em;
}

.guide-library {
    padding: 90px 0 118px;
}

.guide-library-heading {
    margin-bottom: 50px;
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 40px;
}

.guide-library-heading h2 {
    max-width: 660px;
    margin: 0;
    font-size: clamp(42px, 5vw, 64px);
    letter-spacing: -0.058em;
    line-height: 1;
}

.guide-library-heading p {
    max-width: 360px;
    margin: 0 0 4px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.6;
}

.guide-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.guide-card {
    position: relative;
    min-height: 440px;
    padding: 36px;
    border: 1px solid var(--line);
    border-radius: 32px;
    background: #fbfbfd;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.guide-card::before {
    position: absolute;
    top: -100px;
    right: -100px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: rgba(83, 178, 234, 0.08);
    content: "";
}

.guide-card:nth-child(2)::before {
    background: rgba(114, 66, 191, 0.07);
}

.guide-card:nth-child(3)::before {
    background: rgba(236, 148, 72, 0.08);
}

.guide-card:hover {
    border-color: rgba(8, 123, 210, 0.14);
    box-shadow: 0 25px 60px rgba(18, 40, 62, 0.1);
    transform: translateY(-5px);
}

.guide-card > * {
    position: relative;
    z-index: 1;
}

.guide-card-icon {
    width: 54px;
    height: 54px;
    border-radius: 18px;
    background: #e8f4fb;
    color: var(--blue);
    display: grid;
    place-items: center;
    font-size: 22px;
}

.guide-card:nth-child(2) .guide-card-icon {
    background: #eee9fa;
    color: #7042bf;
}

.guide-card:nth-child(3) .guide-card-icon {
    background: #fbefe4;
    color: #c86c22;
}

.guide-card-meta {
    margin-top: 50px;
    color: #8a8a90;
    display: flex;
    gap: 9px;
    align-items: center;
    font-size: 11px;
}

.guide-card-meta i {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #b5b5ba;
}

.guide-card h2 {
    margin: 18px 0 14px;
    font-size: 29px;
    letter-spacing: -0.045em;
    line-height: 1.08;
}

.guide-card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.62;
}

.guide-card strong {
    margin-top: auto;
    padding-top: 32px;
    color: #303034;
    font-size: 13px;
    font-weight: 640;
}

.guide-card-featured {
    min-height: 310px;
    grid-column: 1 / -1;
    background:
        radial-gradient(circle at 88% 0%, rgba(83, 178, 234, 0.13), transparent 24rem),
        #fbfbfd;
}

.guide-card-featured .guide-card-meta {
    margin-top: 34px;
}

.guide-card-featured h2,
.guide-card-featured p {
    max-width: 760px;
}

.guide-principles {
    padding: 105px 0;
    background: #f5f5f7;
}

.principles-grid {
    display: grid;
    grid-template-columns: 0.75fr 1.25fr;
    gap: 95px;
    align-items: start;
}

.principles-grid h2 {
    margin: 0;
    font-size: clamp(42px, 5vw, 62px);
    letter-spacing: -0.058em;
    line-height: 1;
}

.principle-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.principle-list li {
    padding: 27px 0;
    border-top: 1px solid var(--line);
    display: grid;
    grid-template-columns: 38px 1fr;
    gap: 22px;
}

.principle-list li:last-child {
    border-bottom: 1px solid var(--line);
}

.principle-list span {
    color: var(--blue);
    font-size: 12px;
    font-weight: 680;
}

.principle-list h3 {
    margin: 0 0 7px;
    font-size: 20px;
    letter-spacing: -0.03em;
}

.principle-list p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.58;
}

.guide-article-hero {
    padding-bottom: 94px;
}

.guide-article-hero .content-hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.6fr);
}

.guide-article-hero .content-hero h1,
.guide-article-hero h1 {
    max-width: 880px;
    font-size: clamp(54px, 6.4vw, 84px);
}

.article-body {
    padding: 104px 0;
}

.article-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 760px);
    gap: 90px;
    justify-content: center;
    align-items: start;
}

.article-toc {
    position: sticky;
    top: 110px;
}

.article-toc > span {
    display: block;
    margin-bottom: 18px;
    color: #9a9aa0;
    font-size: 10px;
    font-weight: 680;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.article-toc nav {
    display: grid;
    gap: 4px;
}

.article-toc a {
    padding: 8px 0;
    color: #69696f;
    font-size: 13px;
    line-height: 1.4;
    transition: color 160ms ease;
}

.article-toc a:hover {
    color: var(--blue);
}

.guide-prose {
    min-width: 0;
}

.quick-answer {
    margin-bottom: 70px;
    padding: 34px 36px;
    border: 1px solid rgba(8, 123, 210, 0.12);
    border-radius: 27px;
    background:
        radial-gradient(circle at 100% 0%, rgba(96, 188, 242, 0.11), transparent 15rem),
        #f2f8fc;
}

.quick-answer > span {
    color: var(--blue);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.075em;
    text-transform: uppercase;
}

.quick-answer p {
    margin: 15px 0 0;
    color: #334650;
    font-size: 19px;
    font-weight: 530;
    letter-spacing: -0.022em;
    line-height: 1.55;
}

.guide-prose section {
    margin-bottom: 76px;
    scroll-margin-top: 110px;
}

.guide-prose h2 {
    margin: 0 0 24px;
    font-size: 39px;
    letter-spacing: -0.05em;
    line-height: 1.08;
}

.guide-prose h3 {
    margin: 45px 0 14px;
    font-size: 24px;
    letter-spacing: -0.035em;
    line-height: 1.15;
}

.guide-prose p,
.guide-prose li {
    color: #55555b;
    font-size: 17px;
    line-height: 1.72;
}

.guide-prose p {
    margin: 0 0 22px;
}

.guide-prose ul,
.guide-prose ol {
    margin: 24px 0;
    padding-left: 24px;
}

.guide-prose li {
    margin: 12px 0;
    padding-left: 5px;
}

.guide-prose strong {
    color: #29292e;
}

.guide-prose a {
    color: var(--blue);
    text-decoration: underline;
    text-decoration-color: rgba(8, 123, 210, 0.26);
    text-underline-offset: 3px;
}

.decision-list {
    margin: 30px 0;
    padding: 0;
    border-top: 1px solid var(--line);
    list-style: none;
}

.decision-list li {
    margin: 0;
    padding: 27px 0;
    border-bottom: 1px solid var(--line);
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 20px;
}

.decision-list > li > span {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: #edf6fc;
    color: var(--blue);
    display: grid;
    place-items: center;
    font-size: 12px;
    font-weight: 700;
}

.decision-list h3 {
    margin: 3px 0 8px;
    font-size: 21px;
}

.decision-list p {
    margin: 0;
    font-size: 15px;
    line-height: 1.62;
}

.carrier-actions,
.format-list {
    margin: 30px 0;
    display: grid;
    gap: 12px;
}

.carrier-action,
.format-row {
    padding: 25px 27px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: #fbfbfd;
}

.carrier-action h3,
.format-row h3 {
    margin: 0 0 8px;
    font-size: 20px;
}

.carrier-action p,
.format-row p {
    margin: 0;
    font-size: 14px;
    line-height: 1.6;
}

.format-example {
    width: fit-content;
    margin: 12px 0 13px;
    padding: 7px 10px;
    border-radius: 9px;
    background: #ededf0;
    color: #343438;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 12px;
    letter-spacing: 0.025em;
}

.guide-note {
    margin: 34px 0;
    padding: 26px 28px;
    border-left: 3px solid var(--blue);
    border-radius: 0 19px 19px 0;
    background: #f5f5f7;
}

.guide-note p {
    margin: 0;
    color: #505057;
    font-size: 15px;
    line-height: 1.62;
}

.source-block {
    padding-top: 28px;
    border-top: 1px solid var(--line);
}

.source-block h2 {
    font-size: 25px;
}

.source-block p,
.source-block li {
    font-size: 14px;
}

.article-product-card {
    margin: 74px 0;
    padding: 38px;
    border-radius: 30px;
    background:
        radial-gradient(circle at 100% 0%, rgba(120, 204, 251, 0.34), transparent 20rem),
        linear-gradient(145deg, #117fc6, #07558e);
    color: #fff;
}

.article-product-card .brand {
    margin-bottom: 50px;
    color: #fff;
}

.article-product-card h2 {
    max-width: 590px;
    margin-bottom: 16px;
    color: #fff;
}

.article-product-card p {
    max-width: 610px;
    color: rgba(255, 255, 255, 0.78);
}

.article-product-card a {
    margin-top: 8px;
    color: #fff;
    font-weight: 650;
    text-decoration-color: rgba(255, 255, 255, 0.42);
}

.guide-disclaimer {
    color: #8a8a90 !important;
    font-size: 12px !important;
    line-height: 1.6 !important;
}

@media (max-width: 1000px) {
    .guide-card-grid {
        grid-template-columns: 1fr;
    }

    .guide-card {
        min-height: 350px;
    }

    .principles-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .article-layout {
        grid-template-columns: 1fr;
        gap: 42px;
    }

    .article-toc {
        position: static;
        padding-bottom: 28px;
        border-bottom: 1px solid var(--line);
    }

    .article-toc nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 2px 22px;
    }
}

@media (max-width: 760px) {
    .guides-hero {
        padding: 126px 0 80px;
    }

    .guides-hero h1 {
        font-size: clamp(52px, 15vw, 70px);
    }

    .guides-hero p {
        font-size: 18px;
    }

    .guide-library {
        padding: 76px 0 88px;
    }

    .guide-library-heading {
        align-items: start;
        flex-direction: column;
        gap: 24px;
    }

    .guide-card {
        min-height: 380px;
        padding: 30px;
        border-radius: 28px;
    }

    .guide-card-featured {
        min-height: 390px;
        grid-column: auto;
    }

    .guide-card-meta {
        margin-top: 42px;
    }

    .guide-principles {
        padding: 82px 0;
    }

    .guide-article-hero {
        padding-bottom: 70px;
    }

    .article-body {
        padding: 78px 0;
    }

    .article-toc nav {
        grid-template-columns: 1fr;
    }

    .quick-answer {
        margin-bottom: 56px;
        padding: 28px 25px;
        border-radius: 23px;
    }

    .quick-answer p {
        font-size: 17px;
    }

    .guide-prose section {
        margin-bottom: 60px;
    }

    .guide-prose h2 {
        font-size: 32px;
    }

    .guide-prose p,
    .guide-prose li {
        font-size: 16px;
    }

    .decision-list li {
        grid-template-columns: 38px 1fr;
        gap: 14px;
    }

    .article-product-card {
        margin: 58px 0;
        padding: 30px 25px;
        border-radius: 26px;
    }
}