/* =========================================================
   China TA · ABOUT
========================================================= */

:root {
    --about-black: #080808;
    --about-black-soft: #0d0d0d;
    --about-gold: #b89b68;
    --about-gold-soft: #c7aa70;
    --about-white: #f4f1eb;
    --about-muted: rgba(255, 255, 255, .48);
    --about-line: rgba(255, 255, 255, .09);
    --about-gold-line: rgba(184, 155, 104, .22);
}

.about-page {
    min-height: 100vh;
    background: var(--about-black);
    color: var(--about-white);
}

.about-page .about-site-header {
    position: fixed;
    background: rgba(8, 8, 8, .82);
    border-bottom: 1px solid rgba(184, 155, 104, .12);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.about-shell {
    width: min(1040px, calc(100% - 80px));
    margin: 0 auto;
}

/* ---------------------------------------------------------
   Masthead
--------------------------------------------------------- */

.about-masthead {
    position: relative;
    overflow: hidden;
    padding: 190px 0 108px;
    background:
        radial-gradient(circle at 78% 24%, rgba(184, 155, 104, .095), transparent 29%),
        linear-gradient(180deg, #070707 0%, #0b0b0b 100%);
    border-bottom: 1px solid var(--about-gold-line);
}

.about-masthead .about-shell {
    position: relative;
    z-index: 1;
}

.about-breadcrumb {
    display: flex;
    gap: 12px;
    margin: 0 0 58px;
    color: rgba(255, 255, 255, .30);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 9px;
    letter-spacing: .18em;
}

.about-breadcrumb a {
    transition: color .2s ease;
}

.about-breadcrumb a:hover {
    color: var(--about-gold-soft);
}

.about-title {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(72px, 9vw, 132px);
    font-weight: 400;
    line-height: .88;
    letter-spacing: -.035em;
}

.about-intro {
    max-width: 760px;
    margin: 34px 0 0;
    color: rgba(255, 255, 255, .67);
    font-size: clamp(15px, 1.6vw, 18px);
    line-height: 2;
    letter-spacing: .055em;
}

/* ---------------------------------------------------------
   Content
--------------------------------------------------------- */

.about-content {
    padding: 84px 0 118px;
    background:
        linear-gradient(180deg, var(--about-black-soft) 0%, var(--about-black) 100%);
}

.about-blocks {
    border-bottom: 1px solid var(--about-line);
}

.about-block {
    display: block;
    padding: 58px 0 64px;
    border-top: 1px solid var(--about-line);
}

.about-block:first-child {
    border-top-color: var(--about-gold-line);
}

.about-block-copy {
    max-width: 780px;
}

.about-block-copy h2 {
    margin: 0 0 24px;
    color: rgba(255, 255, 255, .94);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(27px, 3vw, 40px);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: .025em;
}

.about-block-copy p {
    margin: 0;
    color: var(--about-muted);
    font-size: 13px;
    line-height: 2.05;
    letter-spacing: .055em;
}

.about-block-copy p + p {
    margin-top: 18px;
}

.about-operator {
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    gap: 30px;
    padding: 50px 0 8px;
}

.about-operator > div {
    display: flex;
    align-items: baseline;
    gap: 18px;
}

.about-operator span {
    color: rgba(255, 255, 255, .36);
    font-size: 10px;
    letter-spacing: .07em;
}

/* ---------------------------------------------------------
   Responsive
--------------------------------------------------------- */

@media (max-width: 780px) {
    .about-shell {
        width: min(100% - 36px, 1040px);
    }

    .about-masthead {
        padding: 166px 0 76px;
    }

    .about-breadcrumb {
        margin-bottom: 38px;
    }

    .about-title {
        font-size: clamp(58px, 18vw, 88px);
    }

    .about-intro {
        margin-top: 26px;
        font-size: 14px;
        line-height: 1.9;
    }

    .about-content {
        padding: 50px 0 78px;
    }

    .about-block {
        padding: 42px 0 46px;
    }

    .about-block-copy h2 {
        margin-bottom: 18px;
        font-size: 27px;
    }

    .about-block-copy p {
        font-size: 12px;
        line-height: 1.95;
    }

    .about-operator {
        align-items: flex-start;
        flex-direction: column;
        gap: 18px;
        padding-top: 38px;
    }

    .about-operator > div {
        align-items: flex-start;
        flex-direction: column;
        gap: 7px;
    }
}

@media (max-width: 420px) {
    .about-shell {
        width: calc(100% - 30px);
    }

    .about-masthead {
        padding-top: 158px;
    }

    .about-intro {
        letter-spacing: .035em;
    }
}