/* Local subsets keep the printed issue's Chinese typography consistent across devices. */
@font-face {
    font-family: "Annual Serif";
    src: url("https://chexie-1342390402.cos.ap-beijing.myqcloud.com/annual/2023/assets/fonts/annual-serif-Regular.woff2") format("woff2");
    font-style: normal;
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: "Annual Serif";
    src: url("https://chexie-1342390402.cos.ap-beijing.myqcloud.com/annual/2023/assets/fonts/annual-serif-Bold.woff2") format("woff2");
    font-style: normal;
    font-weight: 700;
    font-display: swap;
}
@font-face {
    font-family: "Annual Sans";
    src: url("https://chexie-1342390402.cos.ap-beijing.myqcloud.com/annual/2023/assets/fonts/annual-sans-Regular.woff2") format("woff2");
    font-style: normal;
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: "Annual Sans";
    src: url("https://chexie-1342390402.cos.ap-beijing.myqcloud.com/annual/2023/assets/fonts/annual-sans-Bold.woff2") format("woff2");
    font-style: normal;
    font-weight: 700;
    font-display: swap;
}

/* 行者 2023 · 总第二十五期 — palette sampled from the printed issue */
:root {
    --ink: #16243a;
    --ink-soft: #52627a;
    --ink-faint: #8593a6;
    --paper: #f7f9fb;
    --white: #ffffff;
    --line: rgba(22, 36, 58, .13);

    --sky-night: #1d3e70;
    --sky-deep: #2a5391;
    --sky: #346fbf;
    --sky-mid: #538abd;
    --mist: #e6eef5;
    --sea: #7fa9bb;
    --grass: #5f5a2b;
    --flag: #df242a;
    --asphalt: #2b323d;

    --cyan: #62cbdd;
    --cyan-strong: #1f98b1;
    --cyan-ink: #17697c;
    --sun: #eba963;
    --sun-ink: #a35c17;
    --dusk: #21212a;
    --sand: #efdfcc;

    --serif: "Annual Serif", "Source Han Serif SC", "Noto Serif SC", "Noto Serif CJK SC", "Songti SC", "STSong", "SimSun", serif;
    --sans: "Annual Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --numeral: "Didot", "Bodoni 72", "Bodoni MT", "Georgia", "Times New Roman", serif;
    --latin: "Helvetica Neue", "Arial", sans-serif;

    --wrap: 1200px;
    --gutter: clamp(16px, 4vw, 48px);
    --radius: 2px;
    --radius-sm: 1px;
    --shadow-card: 0 1px 2px rgba(20, 32, 48, .05), 0 12px 32px rgba(20, 32, 48, .06);

    --accent: var(--sky);
    --accent-ink: var(--sky-deep);
    --accent-soft: var(--mist);
}

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

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: 16px;
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--serif);
    font-size: 17px;
    line-height: 1.75;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
p, h1, h2, h3, h4, figure, blockquote, dl, dd, ol { margin: 0; }
ol { padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; border-radius: var(--radius-sm); }

.wrap {
    width: 100%;
    max-width: calc(var(--wrap) + var(--gutter) * 2);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.skip {
    position: absolute;
    left: 12px;
    top: -60px;
    z-index: 40;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--sky-deep);
    font-family: var(--sans);
    font-size: 14px;
    text-decoration: none;
}
.skip:focus { top: 12px; }

/* route transition snapshots; same-document navigation uses the API, full navigation uses the CSS opt-in */
@view-transition { navigation: auto; }
::view-transition-old(root) {
    animation: annual-route-out .86s cubic-bezier(.76, 0, .24, 1) both;
}
::view-transition-new(root) {
    animation: annual-route-in .86s cubic-bezier(.76, 0, .24, 1) both;
}
@keyframes annual-route-out {
    from { clip-path: inset(0 0 0 0); }
    to { clip-path: inset(0 0 0 100%); }
}
@keyframes annual-route-in {
    from { clip-path: inset(0 100% 0 0); }
    to { clip-path: inset(0 0 0 0); }
}

/* fallback curtain for browsers without cross-document View Transition support */
.page-wipe {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: grid;
    grid-template-rows: repeat(8, minmax(0, 1fr));
    pointer-events: none;
}
.page-wipe i {
    display: block;
    background: var(--sky-deep);
    transform: translateX(-101%);
    animation: page-wipe-in .3s cubic-bezier(.76, 0, .24, 1) calc(var(--wipe-i) * 22ms) both;
}
/* the router reveals the new page once it is in place */
.page-wipe.is-out i { animation: page-wipe-out .36s cubic-bezier(.76, 0, .24, 1) calc(var(--wipe-i) * 22ms) both; }
.page-wipe i:nth-child(2n) { background: var(--sky-night); }
.page-wipe i:nth-child(3n) { background: var(--cyan-strong); }
@keyframes page-wipe-in {
    from { transform: translateX(-101%); }
    to { transform: translateX(0); }
}
@keyframes page-wipe-out {
    from { transform: translateX(0); }
    to { transform: translateX(101%); }
}
html.is-routing body, html.is-routing a { cursor: progress; }
[data-route-focus]:focus { outline: none; }

/* section themes */
.t-front { --accent: var(--sky); --accent-ink: var(--sky-deep); --accent-soft: var(--mist); }
.t-summer { --accent: var(--cyan); --accent-ink: var(--cyan-ink); --accent-soft: #e2f4f8; }
.t-foot { --accent: var(--sun); --accent-ink: var(--sun-ink); --accent-soft: #fbeee0; }
.t-memory { --accent: var(--sand); --accent-ink: var(--sand); --accent-soft: rgba(239, 223, 204, .08); }
.t-appendix { --accent: #9aa6b6; --accent-ink: var(--ink-soft); --accent-soft: #eef1f5; }

/* ---------- top bar ---------- */
.bar {
    position: absolute;
    inset: 0 0 auto;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px var(--gutter);
    color: var(--white);
    font-family: var(--sans);
    font-size: 14px;
}
.bar-brand {
    display: inline-flex;
    align-items: baseline;
    gap: 10px;
    text-decoration: none;
    letter-spacing: .08em;
}
.bar-brand b {
    padding: 1px 6px;
    background: var(--flag);
    color: var(--white);
    font-family: var(--latin);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .12em;
}
.bar-nav { display: flex; gap: 6px; }
.bar-nav a {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background-color .2s;
}
.bar-nav a:hover { background: rgba(255, 255, 255, .16); }

.bar-solid {
    position: sticky;
    top: 0;
    padding-block: 12px;
    background: rgba(255, 255, 255, .9);
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    backdrop-filter: saturate(1.4) blur(12px);
    -webkit-backdrop-filter: saturate(1.4) blur(12px);
}
.bar-solid .bar-nav a:hover { background: var(--mist); }

/* ---------- hero ---------- */
.hero {
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100svh;
    overflow: hidden;
    background:
        radial-gradient(120% 60% at 85% 0%, rgba(29, 62, 112, .85), transparent 60%),
        linear-gradient(180deg, var(--sky-night) 0%, var(--sky) 34%, var(--sky-mid) 58%, #8db4cc 82%, var(--sea) 100%);
    color: var(--white);
}

.hero-cycling {
    position: absolute;
    left: 50%;
    top: 20%;
    transform: translateX(-50%);
    color: rgba(168, 214, 246, .26);
    font-family: var(--latin);
    font-size: clamp(88px, 19vw, 300px);
    font-weight: 200;
    letter-spacing: .04em;
    line-height: 1;
    white-space: nowrap;
    pointer-events: none;
    user-select: none;
}

.hero-inner {
    position: relative;
    flex: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 32px 56px;
    width: 100%;
    max-width: calc(var(--wrap) + var(--gutter) * 2);
    margin-inline: auto;
    padding: 96px var(--gutter) 24px;
}

.hero-mark {
    position: relative;
    justify-self: center;
    width: clamp(210px, 30vw, 400px);
    animation: rise 1s cubic-bezier(.2, .7, .2, 1) both;
}
.hero-mark h1 img { width: 100%; filter: drop-shadow(0 18px 30px rgba(12, 32, 66, .28)); }
.hero-motto {
    position: absolute;
    color: rgba(255, 255, 255, .92);
    font-size: clamp(20px, 2.4vw, 34px);
    font-weight: 700;
    letter-spacing: .06em;
    white-space: nowrap;
}
.hero-motto-a { right: 88%; top: 14%; }
.hero-motto-b { left: 92%; bottom: 7%; }

.hero-issue {
    display: grid;
    grid-template-columns: auto auto;
    align-items: start;
    gap: 14px;
    padding-bottom: 8px;
    animation: rise 1s .15s cubic-bezier(.2, .7, .2, 1) both;
}
.hero-date {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    font-family: var(--latin);
    font-size: 13px;
    letter-spacing: .14em;
    opacity: .8;
}
.hero-no {
    font-size: clamp(24px, 2.4vw, 32px);
    font-weight: 700;
    letter-spacing: .12em;
    line-height: 1.3;
}
.hero-org {
    margin-top: 4px;
    font-family: var(--sans);
    font-size: 14px;
    letter-spacing: .08em;
    opacity: .88;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 22px;
    border-radius: var(--radius-sm);
    font-family: var(--sans);
    font-size: 15px;
    letter-spacing: .06em;
    text-decoration: none;
    transition: background-color .2s, color .2s;
}
.btn-solid { background: var(--white); color: var(--sky-deep); font-weight: 600; }
.btn-solid:hover { background: var(--mist); }
.btn-ghost { border: 1px solid rgba(255, 255, 255, .7); color: var(--white); }
.btn-ghost:hover { background: rgba(255, 255, 255, .14); }

.hero-ground { position: relative; }
.hero-year {
    position: relative;
    z-index: 1;
    margin-bottom: -.13em;
    color: rgba(255, 255, 255, .8);
    font-family: var(--numeral);
    font-size: clamp(120px, 27vw, 400px);
    font-weight: 700;
    letter-spacing: -.02em;
    line-height: .8;
    text-align: center;
    pointer-events: none;
    user-select: none;
}
.hero-shore {
    width: 100%;
    height: clamp(190px, 30vh, 380px);
    object-fit: cover;
    object-position: 50% 62%;
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 26%);
    mask-image: linear-gradient(180deg, transparent 0, #000 26%);
}

@keyframes rise {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: none; }
}

/* ---------- route ---------- */
.route {
    padding: clamp(56px, 8vw, 104px) 0;
    background: var(--white);
    text-align: center;
}
.route-title {
    color: var(--sky-deep);
    font-size: clamp(22px, 3.4vw, 40px);
    font-weight: 900;
    letter-spacing: .08em;
    line-height: 1.4;
}

/* animated route map (geometry from build tooling; script.js starts it on view) */
.route-map {
    --ride: 7s;
    position: relative;
    max-width: 1100px;
    margin: clamp(28px, 4vw, 44px) auto 0;
    aspect-ratio: 3 / 2;
    overflow: hidden;
    border: 1px solid #d3dfe9;
    border-radius: var(--radius);
    background: linear-gradient(180deg, #edf3f8, #e2ecf4);
}
.route-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.map-around path { fill: #f2f6f9; stroke: #d3dfe9; stroke-width: 1.2; stroke-linejoin: round; }
.map-provinces path { fill: var(--white); stroke: #bfd0e0; stroke-width: 1.6; stroke-linejoin: round; }
.map-lake { fill: #8db8cb; stroke: #6f9fb5; stroke-width: 1; }
.map-ghost { fill: none; stroke: var(--sky-mid); stroke-width: 2; stroke-dasharray: 1 7; stroke-linecap: round; opacity: .55; }
.map-road { fill: none; stroke: var(--asphalt); stroke-width: 9; stroke-linecap: round; stroke-linejoin: round; }
.map-centre { fill: none; stroke: var(--white); stroke-width: 1.6; stroke-dasharray: 7 7; stroke-linejoin: round; }
.map-reveal { fill: none; stroke: var(--white); stroke-width: 22; stroke-linejoin: round; stroke-dasharray: 1 1.1; stroke-dashoffset: 0; }
.map-stop circle { fill: var(--flag); stroke: var(--white); stroke-width: 3; }
.map-stop .map-stop-halo { fill: rgba(223, 36, 42, .18); stroke: none; }
.map-stop, .map-town { transform-box: fill-box; transform-origin: center; }
.map-town { fill: var(--white); stroke: var(--asphalt); stroke-width: 2.5; }
.map-rider { opacity: 0; fill: none; stroke: var(--flag); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.map-rider circle { fill: var(--white); }

.map-label {
    position: absolute;
    z-index: 1;
    white-space: nowrap;
    line-height: 1;
    text-shadow: 0 0 3px var(--white), 0 0 6px var(--white), 0 0 10px var(--white);
}
.map-label.is-below { transform: translate(-50%, 16px); }
.map-label.is-above { transform: translate(-50%, calc(-100% - 16px)); }
.map-label.is-left { transform: translate(calc(-100% - 12px), -50%); }
.map-label.is-right { transform: translate(12px, -50%); }
.map-label-major { color: var(--ink); font-size: clamp(13px, 2vw, 24px); font-weight: 900; letter-spacing: .08em; }
.map-label-minor { color: var(--ink-soft); font-family: var(--sans); font-size: clamp(10px, 1.25vw, 14px); letter-spacing: .06em; }
.map-province {
    position: absolute;
    transform: translate(-50%, -50%);
    color: rgba(42, 83, 145, .12);
    font-size: clamp(18px, 4vw, 50px);
    font-weight: 900;
    letter-spacing: .5em;
    text-indent: .5em;
    white-space: nowrap;
    pointer-events: none;
}
.map-credit {
    position: absolute;
    left: 14px;
    bottom: 10px;
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 11px;
    letter-spacing: .04em;
}

.route-map.is-ready .map-reveal { stroke-dashoffset: 1.05; }
.route-map.is-ready .map-stop,
.route-map.is-ready .map-town,
.route-map.is-ready .map-label { opacity: 0; }
.route-map.is-playing .map-reveal {
    animation: map-reveal calc(var(--span) * var(--ride)) linear calc(var(--start) * var(--ride)) forwards;
}
.route-map.is-playing .map-stop,
.route-map.is-playing .map-town { animation: map-pop .55s cubic-bezier(.3, 1.6, .5, 1) calc(var(--at) * var(--ride)) both; }
.route-map.is-playing .map-label { animation: map-fade .5s ease-out calc(var(--at) * var(--ride) + .1s) both; }
.route-map.is-playing .map-rider { animation: map-rider var(--ride) linear both; }
@keyframes map-reveal { to { stroke-dashoffset: 0; } }
@keyframes map-pop { from { opacity: 0; transform: scale(.3); } to { opacity: 1; transform: none; } }
@keyframes map-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes map-rider { 0%, 96% { opacity: 1; } 100% { opacity: 0; } }

/* elevation along the same road; heights from SRTM (tool/annual-2023-demo/elevation.py), dot follows the map rider */
.ele {
    --ride: 7s;
    --above: 34px;
    --below: 24px;
    position: relative;
    max-width: 1100px;
    height: clamp(132px, 15vw, 176px);
    margin: 18px auto 0;
}
.ele-svg {
    position: absolute;
    inset: var(--above) 0 var(--below);
    width: 100%;
    height: calc(100% - var(--above) - var(--below));
    overflow: visible;
}
.ele-area { fill: rgba(83, 138, 189, .14); }
.ele-line { fill: none; stroke: var(--sky-deep); stroke-width: 1.8; stroke-linejoin: round; }
.ele::after {
    content: "";
    position: absolute;
    inset: auto 0 var(--below);
    height: 1px;
    background: #bfd0e0;
}
.ele-mark {
    --y: calc(var(--below) + var(--h) * (100% - var(--above) - var(--below)));
    position: absolute;
    inset: 0 auto 0 calc(var(--t) * 100%);
    width: 0;
    font-family: var(--sans);
    line-height: 1;
    white-space: nowrap;
}
.ele-mark::before {
    content: "";
    position: absolute;
    left: -4px;
    bottom: calc(var(--y) - 4px);
    z-index: 1;
    width: 8px;
    height: 8px;
    border: 2px solid var(--white);
    border-radius: 50%;
    background: var(--sky-deep);
}
.ele-mark::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: var(--below);
    height: calc(var(--y) - var(--below));
    border-left: 1px dashed rgba(42, 83, 145, .35);
}
.ele-mark b,
.ele-mark i {
    position: absolute;
    left: 0;
    transform: translateX(calc(var(--t) * -100%));
}
.ele-mark b {
    bottom: calc(var(--y) + 10px);
    color: var(--ink);
    font-family: var(--numeral);
    font-size: clamp(13px, 1.5vw, 17px);
    font-weight: 700;
}
.ele-mark b::after { content: " m"; color: var(--ink-faint); font-size: .72em; font-weight: 400; }
.ele-mark i {
    bottom: 0;
    color: var(--ink-soft);
    font-size: clamp(10px, 1.1vw, 13px);
    font-style: normal;
    letter-spacing: .06em;
}
.ele-mark.is-peak::before { background: var(--flag); }
.ele-mark.is-peak b { color: var(--flag); font-size: clamp(16px, 2vw, 22px); }
.ele-mark.is-peak i { color: var(--flag); }
.ele-dot {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 2;
    width: 14px;
    height: 14px;
    margin: -7px 0 0 -7px;
    border: 3px solid var(--white);
    border-radius: 50%;
    background: var(--flag);
    box-shadow: 0 1px 4px rgba(22, 36, 58, .35);
    opacity: 0;
}
.ele.is-ready .ele-svg { clip-path: inset(-4px 100% -4px 0); }
.ele.is-ready .ele-mark { opacity: 0; }
.ele.is-playing .ele-svg { animation: ele-reveal var(--ride) linear forwards; }
.ele.is-playing .ele-mark { animation: map-fade .5s ease-out calc(var(--t) * var(--ride)) both; }
.ele.is-playing .ele-dot { animation: map-rider var(--ride) linear both; }
@keyframes ele-reveal { to { clip-path: inset(-4px 0 -4px 0); } }

.route-quote {
    max-width: 780px;
    margin: clamp(36px, 5vw, 56px) auto 0;
    color: var(--ink);
    font-size: clamp(19px, 2.3vw, 28px);
    font-style: italic;
    line-height: 1.7;
    letter-spacing: .04em;
    text-wrap: balance;
}
.route-ask {
    margin-top: 18px;
    font-size: clamp(17px, 1.8vw, 22px);
    font-weight: 700;
    letter-spacing: .08em;
}
.route-ask em {
    color: var(--sky-mid);
    font-size: 1.45em;
    font-style: normal;
}

/* ---------- contents ---------- */
.contents {
    padding: clamp(56px, 8vw, 112px) 0 clamp(64px, 9vw, 120px);
    background: var(--paper);
}
.contents-grid {
    display: grid;
    grid-template-columns: 188px minmax(0, 1fr);
    gap: 0 clamp(32px, 5vw, 72px);
}
.contents-head {
    grid-column: 1 / -1;
    display: flex;
    align-items: flex-end;
    margin-bottom: clamp(36px, 5vw, 64px);
}
.contents-head h2 {
    position: relative;
    z-index: 1;
    font-size: clamp(56px, 8vw, 104px);
    font-weight: 900;
    letter-spacing: .08em;
    line-height: 1;
}
.contents-latin {
    margin: 0 0 -.08em -.5em;
    color: transparent;
    -webkit-text-stroke: 1px var(--ink-faint);
    font-family: var(--numeral);
    font-size: clamp(48px, 7vw, 92px);
    font-style: italic;
    line-height: 1;
    opacity: .7;
}

.rail {
    position: sticky;
    top: 28px;
    align-self: start;
    font-family: var(--sans);
    font-size: 15px;
}
.rail > ol { position: relative; padding-left: 20px; }
.rail > ol::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 10px;
    bottom: 10px;
    width: 3px;
    border-radius: 2px;
    background: var(--asphalt);
}
.rail li { position: relative; }
.rail > ol > li + li { margin-top: 14px; }
.rail > ol > li::before {
    content: "";
    position: absolute;
    left: -21px;
    top: .62em;
    width: 11px;
    height: 11px;
    border: 2px solid var(--paper);
    border-radius: 50%;
    background: var(--accent-ink);
}
.rail > ol > .t-memory::before { background: var(--dusk); }
.rail a {
    display: block;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background-color .2s, color .2s;
}
.rail a:hover { background: var(--accent-soft); color: var(--accent-ink); }
.rail .t-memory > a:hover { background: var(--dusk); color: var(--sand); }
.rail > ol > li > a { font-weight: 600; letter-spacing: .06em; }
.rail ol ol { margin: 4px 0 0 10px; color: var(--ink-soft); font-size: 14px; }

.contents-body { display: grid; gap: clamp(56px, 7vw, 96px); min-width: 0; }
.block { scroll-margin-top: 24px; }

/* toc rows */
.toc { border-top: 1px solid var(--line); }
.entry { border-bottom: 1px solid var(--line); }
.entry-row {
    display: grid;
    grid-template-columns: minmax(0, auto) minmax(16px, 1fr) auto 22px;
    align-items: end;
    gap: 10px;
    padding: 13px 10px;
    text-decoration: none;
}
.entry-text { min-width: 0; }
.entry-title { font-size: 17px; line-height: 1.55; }
.entry-author {
    margin-left: .5em;
    color: var(--ink-soft);
    font-size: 14px;
    white-space: nowrap;
}
.entry-author::before { content: "/ "; color: var(--ink-faint); }
.entry-leader {
    height: 2px;
    margin-bottom: .6em;
    background: radial-gradient(circle, var(--ink-faint) 0 1px, transparent 1.2px) 0 50% / 7px 2px repeat-x;
    opacity: .75;
}
.entry-page {
    color: var(--accent-ink);
    font-family: var(--numeral);
    font-size: 18px;
    font-style: italic;
    font-variant-numeric: tabular-nums;
    line-height: 1.4;
    text-align: right;
}
.entry-go {
    color: var(--accent-ink);
    font-family: var(--sans);
    font-size: 15px;
    line-height: 1.6;
    text-align: right;
    transition: transform .2s;
}
.entry:not(.is-live) .entry-title { color: var(--ink-soft); }
.entry.is-live .entry-title { font-weight: 700; }
.entry.is-live .entry-row {
    position: relative;
    transition: background-color .2s;
}
.entry.is-live .entry-row::before {
    content: "";
    position: absolute;
    left: 0;
    top: 14px;
    bottom: 14px;
    width: 3px;
    background: var(--accent);
}
.entry.is-live .entry-row:hover { background: var(--accent-soft); }
.entry.is-live .entry-row:hover .entry-title {
    text-decoration: underline 2px var(--accent);
    text-underline-offset: 5px;
}
.entry.is-live .entry-row:hover .entry-go { transform: translateX(3px); }

/* front block */
.feature {
    position: relative;
    display: grid;
    gap: 18px;
    margin-bottom: 28px;
    padding: clamp(28px, 4vw, 48px);
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--sky-deep);
    color: var(--white);
    text-decoration: none;
    transition: background-color .2s;
}
.feature:hover { background: var(--sky-night); }
.feature::after {
    content: "";
    position: absolute;
    right: -40px;
    bottom: -60px;
    width: 280px;
    height: 330px;
    background: url("https://chexie-1342390402.cos.ap-beijing.myqcloud.com/annual/2023/assets/brush.webp") center / contain no-repeat;
    opacity: .1;
    pointer-events: none;
}
.feature-kicker {
    justify-self: start;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--sky-deep);
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .14em;
}
.feature-quote {
    display: grid;
    gap: 4px;
    font-size: clamp(20px, 2.6vw, 30px);
    font-weight: 700;
    letter-spacing: .06em;
    line-height: 1.55;
}
.feature-quote span { opacity: .78; }
.feature-quote .feature-last { opacity: 1; font-size: 1.18em; font-weight: 900; }
.feature-by {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 4px 14px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, .28);
    font-size: 18px;
    font-weight: 700;
}
.feature-by small { font-family: var(--sans); font-size: 13px; font-weight: 400; opacity: .85; }
.feature-go { margin-left: auto; font-family: var(--sans); transition: transform .2s; }
.feature:hover .feature-go { transform: translateX(4px); }

/* summer block */
.banner {
    position: relative;
    margin-bottom: clamp(28px, 4vw, 44px);
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--sky-deep);
}
.banner img {
    width: 100%;
    aspect-ratio: 21 / 9;
    object-fit: cover;
    object-position: 50% 24%;
}
.banner::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(11, 34, 64, .88) 0%, rgba(11, 34, 64, .62) 28%, rgba(11, 34, 64, .16) 57%, transparent 84%);
    pointer-events: none;
}
.banner-title {
    position: absolute;
    left: clamp(20px, 4vw, 44px);
    bottom: clamp(14px, 3vw, 32px);
    z-index: 1;
    color: var(--white);
    font-size: clamp(40px, 7vw, 88px);
    font-weight: 900;
    letter-spacing: .1em;
    line-height: 1.1;
    text-shadow: 0 6px 24px rgba(0, 0, 0, .25);
}

.group {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(20px, 3.5vw, 44px);
    align-items: start;
    scroll-margin-top: 24px;
}
.group + .group { margin-top: clamp(40px, 5vw, 64px); }
.group-photo {
    position: sticky;
    top: 28px;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--accent-soft);
}
.group-photo img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.group-name {
    margin-bottom: 14px;
    font-size: clamp(30px, 3.4vw, 42px);
    font-weight: 900;
    letter-spacing: .08em;
    line-height: 1.2;
}
.tab {
    display: inline-block;
    margin-right: .06em;
    padding: 0 .1em;
    background: var(--cyan-strong);
    color: var(--white);
}

/* footsteps block */
.block-foot {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(20px, 3.5vw, 44px);
    align-items: start;
}
.split-photo {
    position: sticky;
    top: 28px;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--accent-soft);
}
.split-photo img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: 60% 50%; }
.foot-title {
    display: flex;
    align-items: flex-end;
    gap: .15em;
    margin-bottom: 18px;
    color: var(--sun);
    font-size: clamp(56px, 7vw, 92px);
    font-weight: 900;
    letter-spacing: .06em;
    line-height: 1;
}
.foot-title span {
    padding-bottom: .12em;
    color: var(--ink);
    font-size: .42em;
    letter-spacing: .2em;
    line-height: 1.1;
    writing-mode: vertical-rl;
}

/* memories block */
.block-memory {
    --line: rgba(239, 223, 204, .16);
    --ink-soft: rgba(239, 223, 204, .66);
    --ink-faint: rgba(239, 223, 204, .4);
    --pad: clamp(22px, 4vw, 44px);
    overflow: hidden;
    padding: 0 var(--pad) var(--pad);
    border-radius: var(--radius);
    background: var(--dusk);
    color: var(--sand);
}
.memory-strip {
    width: calc(100% + var(--pad) * 2);
    max-width: none;
    margin-inline: calc(var(--pad) * -1);
    aspect-ratio: 1897 / 560;
    object-fit: cover;
    object-position: 50% 40%;
    opacity: .9;
}
.memory-title {
    margin: clamp(20px, 3vw, 32px) 0 16px;
    font-size: clamp(44px, 6vw, 76px);
    font-weight: 900;
    letter-spacing: .24em;
    line-height: 1.1;
}
.block-memory .entry:not(.is-live) .entry-title { color: rgba(239, 223, 204, .86); }

/* appendix block */
.appendix-title {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5em;
    height: 1.5em;
    margin-bottom: 14px;
    border-radius: var(--radius-sm);
    background: var(--ink);
    color: var(--paper);
    font-size: 24px;
    font-weight: 900;
}

/* ---------- interlude poem ---------- */
.interlude {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    background: var(--sky-night);
    color: var(--white);
}
.interlude-photo img { width: 100%; height: 100%; max-height: 900px; object-fit: cover; }
.poem {
    display: flex;
    flex-direction: row-reverse;
    align-items: flex-start;
    justify-content: center;
    gap: 28px;
    padding: clamp(48px, 7vw, 96px) clamp(24px, 5vw, 72px);
    background: linear-gradient(180deg, var(--sky-night), var(--sky-deep));
}
.poem h2, .poem p { writing-mode: vertical-rl; }
.poem h2 {
    padding-left: 12px;
    border-left: 1px solid rgba(255, 255, 255, .3);
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 900;
    letter-spacing: .3em;
}
.poem p {
    font-size: clamp(17px, 1.6vw, 20px);
    line-height: 2.3;
    letter-spacing: .22em;
    opacity: .94;
}

/* ---------- walkers (back cover) ---------- */
.walkers {
    position: relative;
    padding-top: clamp(64px, 9vw, 120px);
    overflow: hidden;
    background: linear-gradient(180deg, var(--sky-deep) 0%, var(--sky) 40%, #6ea3d3 75%, #9cc3e3 100%);
    color: var(--white);
    text-align: center;
}
.walkers-card {
    position: relative;
    max-width: 860px;
    margin: 0 auto;
    padding: clamp(40px, 6vw, 64px) clamp(8px, 4vw, 56px);
    border-block: 1px solid rgba(255, 255, 255, .34);
}
.walkers-card h2 {
    font-size: clamp(22px, 2.4vw, 28px);
    font-weight: 900;
    letter-spacing: .1em;
}
.walkers-card h2 + p { margin-top: 12px; }
.walkers-card p + h2 { margin-top: 36px; }
.walkers-card p {
    font-size: clamp(15px, 1.5vw, 17px);
    line-height: 2.1;
    letter-spacing: .04em;
    text-wrap: balance;
}
.quote-mark {
    position: absolute;
    font-family: var(--numeral);
    font-size: clamp(96px, 12vw, 160px);
    font-weight: 700;
    line-height: 1;
    opacity: .95;
}
.quote-open { left: 0; top: -.2em; }
.quote-close { right: 0; bottom: -.64em; }
.walkers-source {
    max-width: 860px;
    margin: 40px auto 0;
    font-size: 15px;
    letter-spacing: .06em;
    text-align: right;
    opacity: .92;
}
.walkers-ridge {
    width: 100%;
    height: clamp(220px, 34vw, 460px);
    margin-top: -2vw;
    object-fit: cover;
    object-position: 50% 70%;
    -webkit-mask-image: linear-gradient(180deg, transparent 0, #000 30%);
    mask-image: linear-gradient(180deg, transparent 0, #000 30%);
}

/* ---------- colophon ---------- */
.colophon {
    padding: clamp(48px, 7vw, 88px) 0 28px;
    background: var(--white);
    border-top: 6px solid var(--grass);
}
.colophon-grid {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(28px, 5vw, 64px);
    align-items: start;
}
.colophon-cover {
    display: block;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    transition: transform .25s;
}
.colophon-cover:hover, .colophon-cover:focus-visible { transform: rotate(-1.5deg) translateY(-2px); }
.credits {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 22px 32px;
    font-family: var(--sans);
    font-size: 14px;
}
.credits dt {
    margin-bottom: 6px;
    color: var(--sky-deep);
    font-weight: 600;
    letter-spacing: .12em;
}
.credits dd { display: grid; gap: 2px; color: var(--ink-soft); line-height: 1.7; }

.footline {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px 24px;
    margin-top: clamp(40px, 6vw, 64px);
    padding-top: 18px;
    border-top: 1px solid var(--line);
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 13px;
    letter-spacing: .06em;
}
.footline a { text-decoration: none; }
.footline a:hover { color: var(--sky-deep); text-decoration: underline; text-underline-offset: 4px; }

/* ---------- article ---------- */
body > .progress {
    position: fixed;
    inset: 0 0 auto;
    z-index: 30;
    display: none;
    height: 3px;
    background: linear-gradient(90deg, var(--cyan), var(--sky));
    transform: scaleX(0);
    transform-origin: 0 50%;
}
@supports (animation-timeline: scroll()) {
    body > .progress { display: block; animation: progress linear both; animation-timeline: scroll(root); }
}
@keyframes progress { to { transform: scaleX(1); } }

/* reading progress as a ride along the bottom edge of the top bar */
.bar .progress {
    position: absolute;
    inset: auto 0 -1px;
    display: none;
    height: 22px;
    container-type: inline-size;
    pointer-events: none;
}
.progress-road,
.progress-rider,
.progress-flag { position: absolute; bottom: 0; }
.progress-road {
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--cyan), var(--sky));
    transform: scaleX(0);
    transform-origin: 0 50%;
}
.progress-rider {
    left: 0;
    bottom: 2px;
    width: 26px;
    height: 19px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='-17 -18 34 26'%3E%3Cg fill='none' stroke='%23df242a' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='-9' cy='0' r='7' fill='%23fff'/%3E%3Ccircle cx='9' cy='0' r='7' fill='%23fff'/%3E%3Cpath d='M-9 0L-3 -10L5 -10L9 0M-3 -10L1 0L-9 0M5 -10L4 -15M1 -13L-5 -13'/%3E%3C/g%3E%3C/svg%3E") 0 100% / contain no-repeat;
}
.progress-flag {
    right: 2px;
    bottom: 2px;
    width: 14px;
    height: 18px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 18'%3E%3Cpath d='M2 17V1' stroke='%2316243a' stroke-width='1.6' stroke-linecap='round'/%3E%3Cpath d='M2.8 1.5H13L10 5L13 8.5H2.8Z' fill='%23df242a'/%3E%3C/svg%3E") 0 100% / contain no-repeat;
    opacity: .28;
    transform-origin: 2px 100%;
}
@supports (animation-timeline: scroll()) {
    .bar .progress { display: block; }
    .progress-road { animation: progress linear both; animation-timeline: scroll(root); }
    .progress-rider { animation: progress-ride linear both; animation-timeline: scroll(root); }
    .progress-flag { animation: progress-flag linear both; animation-timeline: scroll(root); }
}
@keyframes progress-ride { to { transform: translateX(calc(100cqw - 26px - 18px)); } }
@keyframes progress-flag {
    0%, 98% { opacity: .28; transform: none; }
    100% { opacity: 1; transform: scale(1.25); }
}

.read { background: var(--white); }
/* lead photo: an article that opens on a panorama shows it across the window, drifting slower than
   the page, with the heading on a card that rises over its lower edge */
.article-banner {
    position: relative;
    height: max(240px, min(calc(100vw / var(--ar)), 74vh));
    overflow: hidden;
    /* clip, not hidden: the banner must not become a scroll container or its view timeline stalls */
    overflow: clip;
    background: var(--mist);
    view-timeline: --banner block;
}
.article-banner a { position: absolute; inset: 0; display: block; cursor: zoom-in; }
.article-banner img {
    position: absolute;
    left: 0;
    top: -12%;
    width: 100%;
    height: 124%;
    object-fit: cover;
    animation: banner-settle 1.6s cubic-bezier(.2, .7, .2, 1) both;
}
@keyframes banner-settle { from { transform: scale(1.06); } }
@supports (view-timeline: --banner block) {
    .article-banner img {
        animation: banner-settle 1.6s cubic-bezier(.2, .7, .2, 1) both, banner-drift linear both;
        animation-timeline: auto, --banner;
        animation-range: normal, exit;
    }
    @keyframes banner-drift {
        from { translate: 0 0; }
        to { translate: 0 18%; }
    }
}
/* a title artwork as banner (人物志 lettering): shown whole, never cropped or moved, with room
   below it for the title card so the card does not cover the lettering */
.article-banner.is-art {
    --lift: clamp(72px, 11vw, 150px);
    height: calc(min(calc(100vw / var(--ar)), 74vh) + var(--lift));
    background: none;
}
.article-banner.is-art a { inset: 0 0 var(--lift); }
.article-banner.is-art img {
    top: 0;
    height: 100%;
    object-fit: contain;
    animation: none;
    translate: none;
}
.article-banner + .article { padding-top: 0; }
.article-banner + .article .article-head {
    position: relative;
    z-index: 1;
    margin: calc(clamp(72px, 11vw, 150px) * -1) calc(clamp(0px, 4vw, 48px) * -1) 0;
    padding: clamp(24px, 4vw, 44px) clamp(20px, 4vw, 48px);
    border-radius: 6px;
    background: var(--white);
    animation: card-rise .9s cubic-bezier(.2, .8, .2, 1) .25s both;
}
@keyframes card-rise { from { opacity: 0; transform: translateY(40px) scale(.98); } }
.article {
    width: 100%;
    max-width: calc(760px + var(--gutter) * 2);
    margin: 0 auto;
    padding: clamp(48px, 8vw, 104px) var(--gutter) 0;
}
.article-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "kicker stone" "title stone" "byline stone";
    align-items: end;
    gap: 0 24px;
}
.article-kicker { grid-area: kicker; font-family: var(--sans); font-size: 14px; letter-spacing: .12em; }
.article-kicker a {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    background: var(--accent-ink);
    color: var(--white);
    font-weight: 600;
    text-decoration: none;
    transition: background-color .2s;
}
.article-kicker a:hover { background: var(--ink); }
.article-title {
    grid-area: title;
    margin-top: 18px;
    font-size: clamp(44px, 8vw, 88px);
    font-weight: 900;
    letter-spacing: .06em;
    line-height: 1.15;
    text-wrap: balance;
}
.article-title.is-single { font-size: clamp(96px, 18vw, 180px); line-height: 1; }
.article-title.is-long { font-size: clamp(32px, 6vw, 64px); letter-spacing: .04em; }
.article-byline {
    grid-area: byline;
    margin-top: 18px;
    color: var(--ink-soft);
    font-size: 16px;
    letter-spacing: .1em;
}
.milestone {
    grid-area: stone;
    display: grid;
    justify-items: center;
    width: 64px;
    overflow: hidden;
    border: 2px solid var(--ink);
    border-radius: 7px 7px var(--radius-sm) var(--radius-sm);
    background: var(--white);
    text-align: center;
}
.milestone span {
    width: 100%;
    padding: 5px 0 3px;
    background: var(--accent-ink);
    color: var(--white);
    font-family: var(--sans);
    font-size: 11px;
    letter-spacing: .2em;
    text-indent: .2em;
}
.milestone b {
    padding: 4px 0 8px;
    font-family: var(--numeral);
    font-size: 26px;
    line-height: 1.1;
}

.road {
    height: 10px;
    margin: clamp(32px, 5vw, 48px) 0 clamp(36px, 5vw, 56px);
    background:
        linear-gradient(90deg, var(--white) 0 18px, transparent 18px 32px) 0 50% / 32px 2px repeat-x,
        var(--asphalt);
}

.prose { display: flow-root; font-size: 18px; line-height: 2.05; }
.prose p {
    margin-bottom: 1.05em;
    text-align: justify;
    text-indent: 2em;
}
.prose > p:first-child { text-indent: 0; }
.prose > p:first-child:not(.verse):not(.stanza)::first-letter {
    float: left;
    margin: .1em .14em 0 0;
    color: var(--accent-ink);
    font-size: 3.3em;
    font-weight: 900;
    line-height: 1;
}
.figure { clear: both; margin: 2.2em 0; }
/* tall photos sit beside the text; --w is chosen per photo from how much text follows it */
.figure.is-aside { width: var(--w, 40%); margin-block: .55em 1.2em; }
.figure.is-aside.is-right { float: right; margin-left: 28px; }
.figure.is-aside.is-left { float: left; margin-right: 28px; }
.figure.is-solo { width: min(100%, calc(var(--ar) * 72vh)); margin-inline: auto; }
/* related photos share one row at equal height; each link grows by its aspect ratio */
.figure-row {
    display: flex;
    gap: 10px;
    width: min(100%, calc(var(--sum) * 78vh));
    margin-inline: auto;
}
.figure-row a { flex: var(--ar) 1 0; min-width: 0; }
/* halves of one photo split across the original spread */
.figure-row.is-tight { gap: 0; overflow: hidden; border-radius: var(--radius); }
.figure-row.is-tight a { border-radius: 0; }
.prose .verse, .prose .pull { display: flow-root; }
.prose .author-note { clear: both; }
@media (max-width: 559px) {
    .figure.is-aside,
    .figure.is-aside.is-right,
    .figure.is-aside.is-left {
        float: none;
        width: min(100%, calc(var(--ar) * 64vh));
        margin: 2em auto;
    }
    .figure-row { gap: 6px; }
}
.figure-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; align-items: start; }
.figure-pair a { display: block; overflow: hidden; border-radius: var(--radius); }
.figure-pair img { width: 100%; height: min(70vh, 620px); object-fit: cover; }
.figure-pair.is-original img { height: auto; object-fit: contain; }
.figure-pair.is-tight { gap: 0; }
.prose-sub {
    margin: 2.2em 0 .9em;
    color: var(--accent-ink);
    font-size: 21px;
    font-weight: 900;
    letter-spacing: .1em;
}
.prose .verse {
    margin: 0 0 2em;
    padding-left: 1.2em;
    border-left: 3px solid var(--accent);
    font-size: 20px;
    font-weight: 700;
    line-height: 2;
    text-align: left;
    text-indent: 0;
}
.prose .stanza {
    margin: 0 0 1.8em;
    line-height: 2.05;
    text-align: left;
    text-indent: 0;
}
.pull {
    margin: 1.8em 0;
    padding: 4px 0 4px 1.2em;
    border-left: 3px solid var(--accent);
    color: var(--ink-soft);
}
.prose .pull p { margin: 0; text-indent: 0; font-size: 17px; line-height: 2; }
.figure a { display: block; overflow: hidden; border-radius: var(--radius); }
.figure img { width: 100%; }
.prose .author-note {
    margin-top: 2.4em;
    padding: 16px 20px;
    border-left: 3px solid var(--accent);
    background: var(--accent-soft);
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 14px;
    line-height: 1.9;
    text-align: left;
    text-indent: 0;
}

.pager {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    gap: 12px;
    width: 100%;
    max-width: calc(760px + var(--gutter) * 2);
    margin: clamp(48px, 7vw, 80px) auto 0;
    padding: 0 var(--gutter);
    font-family: var(--sans);
}
.pager a {
    display: grid;
    align-content: center;
    gap: 2px;
    min-height: 64px;
    padding: 12px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--white);
    text-decoration: none;
    transition: border-color .2s, background-color .2s;
}
.pager a:hover { border-color: var(--sky-mid); background: var(--paper); }
.pager small { color: var(--ink-soft); font-size: 12px; letter-spacing: .12em; }
.pager span { font-family: var(--serif); font-size: 17px; font-weight: 700; }
.pager-next { text-align: right; }
.pager .pager-toc { justify-items: center; color: var(--sky-deep); font-weight: 600; letter-spacing: .12em; }
.read .footline { margin-bottom: 28px; }

/* ---------- responsive ---------- */
@media (max-width: 1023px) {
    .contents-grid { grid-template-columns: minmax(0, 1fr); }
    .contents-head { margin-bottom: 24px; }
    .rail {
        top: 0;
        z-index: 5;
        margin: 0 calc(var(--gutter) * -1) 32px;
        padding: 10px var(--gutter);
        overflow-x: auto;
        background: rgba(247, 249, 251, .92);
        border-bottom: 1px solid var(--line);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        scrollbar-width: none;
    }
    .rail::-webkit-scrollbar { display: none; }
    .rail ol, .rail > ol { display: flex; gap: 6px; margin: 0; padding: 0; }
    .rail > ol::before, .rail > ol > li::before { display: none; }
    .rail > ol > li + li { margin-top: 0; }
    .rail li { display: flex; flex: none; gap: 6px; }
    .rail a {
        padding: 5px 12px;
        border: 1px solid var(--line);
        border-radius: var(--radius-sm);
        background: var(--white);
        white-space: nowrap;
    }
    .rail > ol > li > a { border-color: transparent; background: var(--accent-soft); color: var(--accent-ink); }
    .rail > ol > .t-memory > a { background: var(--dusk); color: var(--sand); }
    .block, .group { scroll-margin-top: 72px; }
    .group-photo, .split-photo { top: 72px; }
}

@media (max-width: 759px) {
    body { font-size: 16px; }
    .bar { padding-block: 14px; }
    .bar-brand span { display: none; }

    .hero-inner {
        grid-template-columns: minmax(0, 1fr);
        justify-items: center;
        align-content: center;
        gap: 28px;
        padding-top: 88px;
        text-align: center;
    }
    .hero-mark { width: min(56vw, 300px); }
    .hero-motto { font-size: 18px; }
    .hero-motto-a { right: auto; left: -18%; top: -9%; }
    .hero-motto-b { left: auto; right: -14%; bottom: -4%; }
    .hero-issue { grid-template-columns: auto; justify-items: center; }
    .hero-date { display: none; }
    .hero-actions { justify-content: center; }
    .hero-cycling { top: 26%; }
    .hero-year { font-size: 31vw; }
    .hero-shore { height: 26vh; min-height: 170px; object-position: 46% 60%; }

    .route-map { margin-inline: calc(var(--gutter) * -1); border-inline: 0; border-radius: 0; }
    .ele { --above: 30px; --below: 20px; height: 128px; }
    .ele-mark b { font-size: 12px; }
    .ele-mark.is-peak b { font-size: 15px; }
    .ele-mark b::after { content: none; }
    .ele-mark i { font-size: 10px; letter-spacing: 0; }
    .map-label-minor, .map-credit { font-size: 10px; }
    .map-label-minor { display: none; }

    .entry-row { grid-template-columns: minmax(0, 1fr) auto 18px; padding: 12px 6px 12px 10px; }
    .entry-leader { display: none; }
    .entry-author { display: block; margin: 2px 0 0; }
    .entry-title { font-size: 16px; }

    .banner img { aspect-ratio: 4 / 3; }
    .group, .block-foot { grid-template-columns: minmax(0, 1fr); }
    .group-photo, .split-photo { position: static; }
    .group-photo img { aspect-ratio: 16 / 9; }
    .split-photo img { aspect-ratio: 16 / 10; }
    .foot-title { font-size: 60px; }
    .memory-title { letter-spacing: .14em; }

    .interlude { grid-template-columns: minmax(0, 1fr); }
    .interlude-photo img { max-height: 420px; }
    .poem { flex-direction: column; align-items: center; gap: 18px; text-align: center; }
    .poem h2, .poem p { writing-mode: horizontal-tb; }
    .poem h2 {
        padding: 0 0 12px;
        border-left: 0;
        border-bottom: 1px solid rgba(255, 255, 255, .3);
        letter-spacing: .2em;
    }
    .poem p { line-height: 2.1; letter-spacing: .12em; }

    .quote-mark { font-size: 80px; }
    .quote-open { left: 6px; top: -.3em; }
    .quote-close { right: 6px; bottom: -.7em; }

    .colophon-grid { grid-template-columns: minmax(0, 1fr); }
    .colophon-cover { width: 160px; }

    .article-head { grid-template-areas: "kicker stone" "title title" "byline byline"; align-items: start; }
    .milestone { width: 54px; }
    .milestone b { font-size: 22px; }
    .prose { font-size: 17px; line-height: 2; }
    .article-banner { height: max(260px, min(calc(100vw / var(--ar)), 60vh)); }
    .article-banner + .article .article-head { margin: -56px 0 0; }
    .article-banner.is-art { --lift: 56px; height: calc(100vw / var(--ar) + var(--lift)); }
    .pager { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
    .pager .pager-toc { grid-column: 1 / -1; grid-row: 2; }
}

/* ---------- 骑迹 28 年: interactive route map ---------- */
.article-wide { max-width: calc(1200px + var(--gutter) * 2); }

.article.has-side-toc { max-width: calc(1040px + var(--gutter) * 2); }
.article-reading-layout {
    display: grid;
    grid-template-columns: minmax(150px, 190px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
}
.article-side-toc {
    position: sticky;
    top: 84px;
    max-height: calc(100vh - 116px);
    overflow: auto;
    padding: 4px 0 4px 16px;
    border-left: 1px solid var(--line);
    scrollbar-width: thin;
}
.article-side-toc-title {
    margin: 0 0 12px;
    color: var(--accent-ink);
    font-family: var(--sans);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .16em;
}
.article-side-toc ol {
    display: grid;
    gap: 7px;
    margin: 0;
    padding: 0;
    list-style: none;
}
.article-side-toc li { margin: 0; }
.article-side-toc a {
    display: block;
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 13px;
    line-height: 1.4;
    text-decoration: none;
}
.article-side-toc a:hover { color: var(--accent-ink); }
.article-reading-layout .prose-sub { scroll-margin-top: 84px; }

.report-layout .article-reading-layout {
    grid-template-columns: minmax(180px, 220px) minmax(0, 760px);
}

/* report: two-level contents beside the text, the current section is marked while reading */
.report-toc {
    padding: 16px 16px 16px 18px;
    border: 1px solid rgba(154, 166, 182, .45);
    border-radius: var(--radius);
    background: linear-gradient(170deg, var(--accent-soft), var(--white) 70%);
}
.report-toc > ol { gap: 14px; }
.report-toc > ol > li > a {
    display: flex;
    gap: 8px;
    align-items: baseline;
    color: var(--ink);
    font-size: 14px;
    font-weight: 700;
}
.report-toc > ol > li > a span {
    color: var(--accent-ink);
    font-family: var(--numeral);
    font-size: 15px;
    font-style: italic;
    font-weight: 400;
}
.report-toc ol ol {
    display: grid;
    gap: 2px;
    margin: 6px 0 0;
    padding: 0 0 0 10px;
    border-left: 1px solid rgba(154, 166, 182, .4);
    list-style: none;
}
.report-toc ol ol a {
    position: relative;
    padding: 2px 0 2px 8px;
    font-size: 12.5px;
    line-height: 1.45;
    transition: color .2s;
}
/* one-level contents (day-by-day journals) reuse the section-level look */
.report-toc.is-flat > ol {
    gap: 2px;
    padding-left: 10px;
    border-left: 1px solid rgba(154, 166, 182, .4);
}
.report-toc.is-flat > ol > li > a {
    position: relative;
    padding: 2px 0 2px 8px;
    color: var(--ink-soft);
    font-size: 12.5px;
    font-weight: 400;
    line-height: 1.45;
}
.report-toc.is-flat > ol > li > a span {
    min-width: 4.4em;
    font-family: var(--sans);
    font-size: 11px;
    font-style: normal;
    font-weight: 700;
    letter-spacing: .02em;
}
.report-toc a[aria-current] { color: var(--ink); font-weight: 700; }
.report-toc.is-flat > ol > li > a[aria-current]::before,
.report-toc ol ol a[aria-current]::before {
    content: "";
    position: absolute;
    left: -11.5px;
    top: 3px;
    bottom: 3px;
    width: 3px;
    background: var(--accent-ink);
}

.report p { text-align: justify; }
.report-part + .report-part { margin-top: clamp(56px, 8vw, 96px); }
.report-chapter {
    display: flex;
    gap: 18px;
    align-items: baseline;
    margin: 0 0 4px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--accent-ink);
    font-size: clamp(26px, 3.2vw, 34px);
    font-weight: 900;
    letter-spacing: .08em;
    line-height: 1.3;
}
.report-no {
    color: var(--accent-ink);
    font-family: var(--numeral);
    font-size: 1.5em;
    font-style: italic;
    font-weight: 400;
    letter-spacing: 0;
    line-height: 1;
}
.report-section { padding-top: 2.1em; }
.report > .report-section:first-child { padding-top: 0; }
.report-heading {
    display: flex;
    gap: 12px;
    align-items: baseline;
    margin: 0 0 .7em;
    font-size: 20px;
    font-weight: 900;
    letter-spacing: .06em;
    line-height: 1.5;
}
.report-chapter, .report-heading, .report-part { scroll-margin-top: 84px; }
.report-sub-no {
    flex: none;
    min-width: 2.6em;
    padding: 1px 6px;
    border-radius: var(--radius-sm);
    background: var(--accent-soft);
    color: var(--accent-ink);
    font-family: var(--sans);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    letter-spacing: .02em;
    text-align: center;
}
.report-when {
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    font-weight: 400;
    letter-spacing: .04em;
}
.report-minor {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 10px;
    align-items: baseline;
    margin: 1.6em 0 .5em;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: .04em;
}
.report-minor small {
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0;
}
.report-mark {
    color: var(--accent-ink);
    font-family: var(--sans);
    font-weight: 700;
}

.report-terms { margin: 0 0 1.05em; border-top: 1px solid var(--line); }
.report-terms > div {
    display: grid;
    grid-template-columns: 8.5em minmax(0, 1fr);
    gap: 0 20px;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
}
.report-terms dt {
    color: var(--accent-ink);
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 700;
    line-height: 2.3;
}
.prose .report-terms dd p { margin: 0 0 .6em; text-indent: 0; }
.prose .report-terms dd p:last-child { margin-bottom: 0; }
.report-terms dd { text-align: justify; }

.report-points { margin: 0 0 1.05em; padding: 0; list-style: none; }
.report-points > li {
    display: grid;
    grid-template-columns: 1.6em minmax(0, 1fr);
    gap: 0 10px;
    margin-bottom: .9em;
}
.report-points > li > .report-mark { line-height: 2.05; text-align: center; }
.prose .report-points p { margin-bottom: .5em; text-indent: 0; }
.report-points strong { color: var(--ink); font-weight: 700; }

.report-closing {
    margin-top: clamp(56px, 8vw, 88px);
    padding: 22px 24px;
    border-top: 2px solid var(--accent-ink);
    background: var(--paper);
    color: var(--ink-soft);
    font-size: 16px;
    line-height: 1.95;
}
.prose .report-closing p { margin-bottom: .8em; }
.prose .report-closing .report-date {
    margin: 1.2em 0 0;
    color: var(--ink);
    font-family: var(--sans);
    font-size: 14px;
    letter-spacing: .08em;
    text-align: right;
    text-indent: 0;
}

@media (max-width: 759px) {
    .report-toc ol ol { display: none; }
    .report-terms > div { grid-template-columns: minmax(0, 1fr); }
    .report-terms dt { line-height: 1.8; }
    .report-closing { padding: 18px 16px; }
}

.article.appendix-route { max-width: calc(1400px + var(--gutter) * 2); }
.appendix-route .prose { max-width: none; }
.route-gallery { margin-top: clamp(40px, 6vw, 72px); }
.route-pair {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    width: 100%;
    overflow: hidden;
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}
.route-pair .route-sheet { margin: 0; overflow: hidden; }
.route-pair .route-sheet:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.route-pair .route-sheet:last-child { border-radius: 0 var(--radius) var(--radius) 0; }
.route-pair img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 0;
}

.traces {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 28px;
    align-items: start;
}
.traces-map { position: sticky; top: 72px; z-index: 2; }
.traces-frame {
    position: relative;
    aspect-ratio: 1000 / 846;
    overflow: hidden;
    border: 1px solid #d3dfe9;
    border-radius: var(--radius);
    background: linear-gradient(180deg, #edf3f8, #e2ecf4);
}
.traces-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.traces-frame .map-base path {
    fill: var(--white);
    stroke: #c9d6e3;
    stroke-width: .8;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}
.traces-frame .map-base .map-jd { fill: #8fa3b8; stroke: none; }
.trace-defs path {
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
}
.trace-line { stroke: #56657a; stroke-width: 1.4; opacity: .55; transition: opacity .3s, stroke .3s, stroke-width .3s; }
.trace-hit { stroke: transparent; stroke-width: 12; pointer-events: none; }
.traces.is-ready .trace-hit { pointer-events: stroke; cursor: pointer; }
.traces.has-active .trace-line { opacity: .28; }
.trace-path.is-hover .trace-line { opacity: 1; stroke: var(--sky); stroke-width: 2.6; }
.trace-path.is-active .trace-line { opacity: 0; }
.trace-casing {
    fill: none;
    stroke: var(--asphalt);
    stroke-width: 5;
    stroke-width: calc(5 * var(--u, 1));
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 1 1.1;
    animation: trace-draw 1.3s cubic-bezier(.4, 0, .2, 1) both;
}
.trace-centre {
    fill: none;
    stroke: var(--white);
    stroke-width: 1;
    stroke-width: calc(1 * var(--u, 1));
    stroke-dasharray: 4 6;
    stroke-dasharray: calc(4 * var(--u, 1)) calc(6 * var(--u, 1));
    stroke-linejoin: round;
    animation: map-fade .4s 1.1s both;
}
@keyframes trace-draw { from { stroke-dashoffset: 1.05; } to { stroke-dashoffset: 0; } }

.traces-labels { position: absolute; inset: 0; pointer-events: none; }
.trace-node { position: absolute; left: 0; top: 0; }
.trace-node i {
    position: absolute;
    left: -6px;
    top: -6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--flag);
    box-shadow: 0 0 0 2.5px var(--white);
    animation: map-pop .45s cubic-bezier(.3, 1.6, .5, 1) calc(.2s + var(--i) * .22s) both;
}
.trace-node b {
    position: absolute;
    color: var(--ink);
    font-size: 15px;
    font-weight: 900;
    letter-spacing: .06em;
    line-height: 1;
    white-space: nowrap;
    text-shadow: 0 0 3px var(--white), 0 0 6px var(--white), 0 0 10px var(--white);
    animation: map-fade .4s calc(.3s + var(--i) * .22s) both;
}
.trace-node[data-side="right"] b { left: 10px; top: 0; transform: translateY(-50%); }
.trace-node[data-side="left"] b { right: 10px; top: 0; transform: translateY(-50%); }
.trace-node[data-side="above"] b { left: 0; bottom: 10px; transform: translateX(-50%); }
.trace-node[data-side="below"] b { left: 0; top: 10px; transform: translateX(-50%); }
.trace-node[data-side="above-right"] b { left: 6px; bottom: 6px; }
.trace-node[data-side="below-right"] b { left: 6px; top: 6px; }
.trace-node[data-side="above-left"] b { right: 6px; bottom: 6px; }
.trace-node[data-side="below-left"] b { right: 6px; top: 6px; }

.traces-inset {
    position: absolute;
    right: 10px;
    bottom: 10px;
    width: 11%;
    height: auto;
    border: 1px solid #c9d6e3;
    border-radius: var(--radius-sm);
    background: rgba(237, 243, 248, .92);
}

.traces-list { border-top: 1px solid var(--line); }
.trace {
    position: relative;
    display: grid;
    gap: 3px;
    width: 100%;
    padding: 10px 12px 11px 14px;
    border: 0;
    border-bottom: 1px solid var(--line);
    background: none;
    color: inherit;
    font: inherit;
    text-align: left;
    cursor: pointer;
    transition: background-color .2s;
}
.trace:hover { background: var(--paper); }
.trace[aria-pressed="true"] { background: var(--mist); }
.trace[aria-pressed="true"]::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 3px;
    background: var(--flag);
}
.trace-head { display: flex; align-items: baseline; gap: 8px; }
.trace-year {
    color: var(--sky-deep);
    font-family: var(--numeral);
    font-size: 21px;
    font-weight: 700;
    line-height: 1.2;
}
.trace-team {
    padding: 1px 6px;
    border-radius: var(--radius-sm);
    background: var(--mist);
    color: var(--sky-deep);
    font-family: var(--sans);
    font-size: 12px;
    letter-spacing: .06em;
}
.trace[aria-pressed="true"] .trace-team { background: var(--white); }
.trace-route { color: var(--ink-soft); font-size: 14px; line-height: 1.6; }
.trace[aria-pressed="true"] .trace-route { color: var(--ink); }

.traces-notes {
    max-width: 760px;
    margin-top: clamp(40px, 6vw, 64px);
    padding-top: 20px;
    border-top: 1px solid var(--line);
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 14px;
    line-height: 1.9;
}
.traces-notes h2 { margin-bottom: 6px; color: var(--ink); font-size: 15px; letter-spacing: .12em; }
.traces-notes ol { padding-left: 1.4em; list-style: decimal; }

/* ---------- 大事记: horizontal timeline ---------- */
.p0 { --phase: #e0612b; --phase-ink: #a8431a; --phase-soft: #fbe8df; --phase-line: #f0c3ae; }
.p1 { --phase: #3d9b55; --phase-ink: #2b7440; --phase-soft: #e4f2e7; --phase-line: #b9dcc2; }
.p2 { --phase: #d7ae2c; --phase-ink: #7d610b; --phase-soft: #fbf3d7; --phase-line: #ecd892; }
.p3 { --phase: #2f86c0; --phase-ink: #22679a; --phase-soft: #e1eef8; --phase-line: #b3d2ea; }
.p4 { --phase: #4b4fa6; --phase-ink: #3c408c; --phase-soft: #e8e8f6; --phase-line: #c4c5e8; }

.chron {
    --h: 510px;
    --col: 150px;
    --col-major: 176px;
    --card: 250px;
    --card-major: 300px;
    --band: 12px;
    --near: 26px;
    --far: 92px;
    position: relative;
}
.chron-controls {
    display: flex;
    justify-content: flex-end;
    gap: 6px;
    margin-bottom: 12px;
}
.chron-step {
    display: none;
    width: 40px;
    height: 36px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 17px;
    cursor: pointer;
    transition: border-color .2s, background-color .2s, opacity .2s;
}
.chron.is-ready .chron-step { display: inline-flex; align-items: center; justify-content: center; }
.chron-step:hover { border-color: var(--sky-mid); background: var(--paper); }
.chron-step:disabled { opacity: .35; cursor: default; }

.chron-scroller {
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    border-block: 1px solid var(--line);
    background: linear-gradient(180deg, var(--white), var(--paper));
    scrollbar-width: thin;
    scrollbar-color: #b9c6d4 transparent;
    -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 36px, #000 calc(100% - 36px), transparent);
    mask-image: linear-gradient(90deg, transparent 0, #000 36px, #000 calc(100% - 36px), transparent);
}
.chron.is-ready .chron-scroller { cursor: grab; }
.chron.is-dragging .chron-scroller { cursor: grabbing; user-select: none; -webkit-user-select: none; }
.chron-scroller:focus-visible { outline-offset: -2px; }
.chron-track {
    display: flex;
    width: max-content;
    height: var(--h);
    padding: 0 96px;
}
.chron-item, .chron-year {
    position: relative;
    flex: none;
    width: var(--col);
    height: 100%;
}
.chron-item.is-major { width: var(--col-major); }
.chron-year { width: 120px; }

/* the ribbon: each column paints its own stretch of road in its phase colour */
.chron-item::before, .chron-year::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: calc(50% - var(--band) / 2);
    height: var(--band);
    background:
        linear-gradient(90deg, rgba(255, 255, 255, .92) 0 10px, transparent 10px 20px) 0 50% / 20px 2px repeat-x,
        var(--phase);
}
.chron-track > :first-child::before { border-radius: var(--band) 0 0 var(--band); }
.chron-track > :last-child::before { border-radius: 0 var(--band) var(--band) 0; }

.chron-dot {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 2;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 3px solid var(--phase);
    border-radius: 50%;
    background: var(--white);
}
.chron-item.is-major .chron-dot { width: 20px; height: 20px; margin: -10px 0 0 -10px; border-width: 4px; }
/* dashed connector from the ribbon to the card */
.chron-dot::after {
    content: "";
    position: absolute;
    left: 50%;
    width: 0;
    margin-left: -.5px;
    border-left: 1px dashed var(--phase-ink);
    opacity: .6;
}
.is-up .chron-dot::after { bottom: 100%; height: calc(var(--near) - 4px); }
.is-down .chron-dot::after { top: 100%; height: calc(var(--near) - 4px); }
.is-up.is-far .chron-dot::after, .is-down.is-far .chron-dot::after { height: calc(var(--far) - 4px); }

.chron-card {
    position: absolute;
    left: 50%;
    z-index: 1;
    width: var(--card);
    padding: 12px 14px 13px;
    border: 1px solid var(--phase-line);
    border-top: 3px solid var(--phase);
    border-radius: var(--radius);
    background: var(--phase-soft);
    transform: translateX(-50%);
}
.is-major .chron-card { width: var(--card-major); padding: 14px 16px 15px; }
.is-up .chron-card { bottom: calc(50% + var(--band) / 2 + var(--near)); }
.is-down .chron-card { top: calc(50% + var(--band) / 2 + var(--near)); }
.is-up.is-far .chron-card { bottom: calc(50% + var(--band) / 2 + var(--far)); }
.is-down.is-far .chron-card { top: calc(50% + var(--band) / 2 + var(--far)); }
.chron-card time {
    display: block;
    margin-bottom: 4px;
    color: var(--phase-ink);
    font-family: var(--numeral);
    font-size: 17px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    line-height: 1.3;
}
.chron-card p { color: var(--ink); font-size: 15px; line-height: 1.65; }
.is-major .chron-card time { font-size: 19px; }
.is-major .chron-card p { font-size: 16.5px; font-weight: 700; line-height: 1.6; }

/* year post standing on the ribbon, same shape as the page-number marker */
.chron-post {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 2;
    display: grid;
    width: 84px;
    overflow: hidden;
    border: 2px solid var(--ink);
    border-radius: 7px 7px var(--radius-sm) var(--radius-sm);
    background: var(--white);
    text-align: center;
    transform: translate(-50%, -50%);
}
.chron-post i { height: 10px; background: var(--phase); }
.chron-post b {
    padding: 6px 0 8px;
    font-family: var(--numeral);
    font-size: 26px;
    line-height: 1;
}

/* ---------- 人物志 ---------- */
.people-title { max-width: 720px; margin: 0 auto clamp(28px, 4vw, 44px); }
.person-rank {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 6px 14px;
    margin-bottom: 14px;
    font-size: clamp(36px, 4.5vw, 52px);
    font-weight: 900;
    letter-spacing: .08em;
    line-height: 1.1;
}
.person-rank small {
    color: var(--ink-soft);
    font-family: var(--sans);
    font-size: 15px;
    font-weight: 400;
    letter-spacing: .08em;
}
.person-rank small span { margin: 0 .5em; color: var(--ink-faint); }
.person-self {
    margin: 0 0 18px;
    padding: 12px 16px;
    border-left: 3px solid var(--accent);
    background: var(--accent-soft);
    color: var(--ink-soft);
    font-size: 16px;
    font-style: italic;
    line-height: 1.9;
}
.person-notes { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.person-notes li {
    position: relative;
    padding-left: 1.5em;
    font-size: 16.5px;
    line-height: 1.9;
    text-align: justify;
}
.person-notes li::before {
    content: "";
    position: absolute;
    left: .15em;
    top: .62em;
    width: .6em;
    height: .6em;
    border: 1.5px solid var(--accent-ink);
    border-radius: 1px;
}
.people-head { margin-bottom: clamp(28px, 4vw, 44px); }
.people-head img, .people-group img { width: 100%; border-radius: var(--radius); }
.roster { max-width: 640px; margin: 0 auto clamp(48px, 7vw, 88px); }
/* 13 people as 4 / 5 / 4: ten half-columns, each person spans two, rows 1 and 3 start one half-column in */
.roster ol {
    display: grid;
    grid-template-columns: repeat(10, minmax(0, 1fr));
    gap: 16px 12px;
}
.roster li { grid-column: span 2; }
.roster li:nth-child(1), .roster li:nth-child(10) { grid-column: 2 / span 2; }
.roster a {
    display: grid;
    gap: 6px;
    justify-items: center;
    color: var(--ink);
    text-decoration: none;
}
.roster img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: border-color .2s, opacity .2s;
}
.roster span { font-size: 15px; font-weight: 700; letter-spacing: .1em; }
.roster a:hover img { border-color: var(--cyan-strong); opacity: .88; }
.roster a:hover span { color: var(--cyan-ink); }

/* The flying group has 11 people arranged as 4 / 3 / 4. */
.read-flying-people .roster ol {
    grid-template-columns: repeat(12, minmax(0, 1fr));
}
.read-flying-people .roster li { grid-column: span 3; }
.read-flying-people .roster li:nth-child(-n + 4) { grid-row: 1; }
.read-flying-people .roster li:nth-child(5) { grid-column: 2 / span 3; grid-row: 2; }
.read-flying-people .roster li:nth-child(6) { grid-column: 5 / span 3; grid-row: 2; }
.read-flying-people .roster li:nth-child(7) { grid-column: 8 / span 3; grid-row: 2; }
.read-flying-people .roster li:nth-child(8) { grid-column: 1 / span 3; grid-row: 3; }
.read-flying-people .roster li:nth-child(9) { grid-column: 4 / span 3; grid-row: 3; }
.read-flying-people .roster li:nth-child(10) { grid-column: 7 / span 3; grid-row: 3; }
.read-flying-people .roster li:nth-child(11) { grid-column: 10 / span 3; grid-row: 3; }

.people { display: grid; gap: clamp(56px, 7vw, 96px); max-width: 1040px; margin: 0 auto; }
.person {
    display: grid;
    grid-template-columns: 340px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 48px);
    align-items: start;
    scroll-margin-top: 84px;
}
.person.is-flip { grid-template-columns: minmax(0, 1fr) 340px; }
.person.is-flip .person-photo { order: 2; }
.person.is-tall .person-photo { width: 280px; justify-self: center; }
.person-photo {
    position: sticky;
    top: 84px;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--accent-soft);
}
.person-photo img { width: 100%; }
.person-name { margin-bottom: 18px; line-height: 0; }
.person-name img { width: auto; height: 60px; }
.person-name.is-vertical img { height: 120px; }
.person-bio p {
    margin-bottom: .9em;
    font-size: 17px;
    line-height: 1.95;
    text-align: justify;
    text-indent: 2em;
}
.people-group { margin-top: clamp(56px, 7vw, 96px); }

.summer-video {
    max-width: 960px;
    margin: clamp(56px, 8vw, 104px) auto 0;
    padding: clamp(18px, 3vw, 32px);
    border: 1px solid var(--line);
    border-top: 3px solid var(--accent);
    border-radius: var(--radius);
    background: linear-gradient(145deg, var(--accent-soft), var(--white) 62%);
    box-shadow: var(--shadow-card);
}
.summer-video-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--accent-ink);
    font-family: var(--sans);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .16em;
}
.summer-video-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--line);
}
.summer-video-frame {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius);
    background: #101a28;
    box-shadow: 0 8px 24px rgba(20, 32, 48, .14);
}
.summer-video-frame iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
}

.traces-all {
    display: none;
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 3;
    padding: 6px 12px;
    border: 1px solid #c9d6e3;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, .94);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 13px;
    letter-spacing: .08em;
    cursor: pointer;
    transition: border-color .2s, background-color .2s, color .2s;
}
.traces.is-ready .traces-all { display: block; }
.traces-all:hover { border-color: var(--sky-mid); }
.traces-all[aria-pressed="true"] { border-color: var(--sky-deep); background: var(--sky-deep); color: var(--white); cursor: default; }

/* full-screen photo view */
.has-lightbox { overflow: hidden; }
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: grid;
    place-items: center;
    padding: clamp(12px, 3vw, 40px);
    background: rgba(12, 18, 28, .92);
    cursor: zoom-out;
    animation: map-fade .2s ease-out both;
}
.lightbox img { width: auto; max-width: 94vw; max-height: 92vh; max-height: 92dvh; object-fit: contain; }
.lightbox-close {
    position: absolute;
    top: max(12px, env(safe-area-inset-top));
    right: max(12px, env(safe-area-inset-right));
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, .35);
    border-radius: 50%;
    background: rgba(12, 18, 28, .6);
    color: var(--white);
    font: 400 26px/1 var(--sans);
    cursor: pointer;
    transition: background-color .2s;
}
.lightbox-close:hover { background: rgba(255, 255, 255, .16); }
.lightbox-step {
    position: absolute;
    top: 50%;
    width: 48px;
    height: 48px;
    margin-top: -24px;
    border: 1px solid rgba(255, 255, 255, .35);
    border-radius: 50%;
    background: rgba(12, 18, 28, .6) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M15 4L7 12L15 20' fill='none' stroke='%23fff' stroke-width='2.2'/%3E%3C/svg%3E") center / 22px no-repeat;
    cursor: pointer;
    transition: background-color .2s;
}
.lightbox-step:hover { background-color: rgba(255, 255, 255, .16); }
.lightbox-prev { left: max(12px, env(safe-area-inset-left)); }
.lightbox-next { right: max(12px, env(safe-area-inset-right)); transform: scaleX(-1); }
.lightbox img.is-from-next { animation: lightbox-from-next .32s cubic-bezier(.2, .7, .2, 1) both; }
.lightbox img.is-from-prev { animation: lightbox-from-prev .32s cubic-bezier(.2, .7, .2, 1) both; }
@keyframes lightbox-from-next { from { opacity: 0; transform: translateX(48px); } }
@keyframes lightbox-from-prev { from { opacity: 0; transform: translateX(-48px); } }
@media (hover: none) and (pointer: coarse) {
    .lightbox-step { display: none; }
}
.figure a, .colophon-cover { cursor: zoom-in; }

@media (max-width: 1023px) {
    .traces { grid-template-columns: minmax(0, 1fr); gap: 0; }
    .traces-map {
        top: 60px;
        margin: 0 calc(var(--gutter) * -1);
        padding: 8px var(--gutter);
        background: rgba(255, 255, 255, .94);
        border-bottom: 1px solid var(--line);
    }
    .traces-frame { width: min(100%, calc(46vh * 1000 / 846)); margin: 0 auto; }
    .traces-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); border-top: 0; }
}
@media (max-width: 759px) {
    .traces-map { top: 65px; }
    .person, .person.is-flip { grid-template-columns: minmax(0, 1fr); }
    .person.is-flip .person-photo { order: 0; }
    .person-photo, .person.is-tall .person-photo { position: static; width: 100%; }
    .person.is-tall .person-photo img { max-height: 70vh; object-fit: cover; }
    .person-name img { height: 48px; }
    .person-name.is-vertical img { height: 92px; }
    .person-bio p { font-size: 16px; }
    .roster ol { gap: 12px 6px; }
    .roster span { font-size: 13px; }
    .traces-frame { width: min(100%, calc(38vh * 1000 / 846)); }
    .trace-node b { font-size: 13px; }
    .traces-inset { width: 16%; }
    .chron {
        --h: 470px;
        --col: 124px;
        --col-major: 146px;
        --card: 212px;
        --card-major: 252px;
        --near: 22px;
        --far: 70px;
    }
    .chron-track { padding: 0 64px; }
    .chron-card p { font-size: 14px; line-height: 1.6; }
    .is-major .chron-card p { font-size: 15px; }
    .chron-scroller { margin-inline: calc(var(--gutter) * -1); }

    .article-reading-layout { display: block; }
    .article-side-toc {
        position: static;
        max-height: none;
        margin-bottom: 32px;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: var(--paper);
    }
    .article-side-toc ol {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px 16px;
    }
    .route-pair {
        grid-template-columns: minmax(0, 1fr);
        gap: 16px;
        overflow: visible;
        border-radius: 0;
        box-shadow: none;
    }
    .route-pair .route-sheet,
    .route-pair .route-sheet:first-child,
    .route-pair .route-sheet:last-child { border-radius: var(--radius); }
    .route-pair img { border-radius: var(--radius); box-shadow: var(--shadow-card); }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .page-wipe { display: none; }
    ::view-transition-old(root), ::view-transition-new(root) { animation: none; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .progress-rider, .progress-flag { display: none; }
}