430 lines
7.1 KiB
CSS
430 lines
7.1 KiB
CSS
/* 全站布局：负责纸面基底、排版、顶栏、内容带、页脚与公共断点。 */
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*,
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*::before,
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*::after {
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box-sizing: border-box;
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}
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html {
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width: 100%;
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min-width: 0;
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overflow-x: clip;
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scroll-behavior: smooth;
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scrollbar-color: var(--line-soft) var(--paper);
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}
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body {
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width: 100%;
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min-height: 100vh;
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margin: 0;
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overflow-x: clip;
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background-color: var(--paper);
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background-image:
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linear-gradient(90deg, rgb(16 17 18 / 2.4%) 1px, transparent 1px),
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linear-gradient(rgb(16 17 18 / 2.4%) 1px, transparent 1px);
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background-size: 28px 28px;
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color: var(--ink);
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font-family: var(--font-sans);
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font-size: 15px;
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line-height: 1.65;
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text-rendering: optimizeLegibility;
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-webkit-font-smoothing: antialiased;
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}
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body,
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button,
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input,
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select,
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textarea {
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font-family: var(--font-sans);
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}
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img {
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display: block;
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max-width: 100%;
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}
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a {
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color: inherit;
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}
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button,
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input,
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select,
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textarea {
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min-width: 0;
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font-size: inherit;
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}
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button,
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a,
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summary {
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-webkit-tap-highlight-color: transparent;
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}
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h1,
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h2,
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h3,
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h4,
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p {
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margin-top: 0;
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}
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h1,
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h2,
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h3,
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h4 {
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color: var(--ink);
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line-height: 1.12;
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overflow-wrap: anywhere;
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text-wrap: balance;
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}
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h1 {
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margin-bottom: var(--space-4);
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font-size: clamp(2.6rem, 5vw, 4.4rem);
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font-weight: 850;
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letter-spacing: -0.045em;
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}
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h2 {
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margin-bottom: var(--space-3);
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font-size: clamp(1.75rem, 3vw, 2.55rem);
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font-weight: 820;
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letter-spacing: -0.035em;
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}
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h3 {
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margin-bottom: var(--space-2);
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font-size: 1.04rem;
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font-weight: 760;
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}
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h4 {
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margin-bottom: var(--space-2);
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font-size: 0.98rem;
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font-weight: 740;
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}
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p {
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margin-bottom: var(--space-4);
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}
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::selection {
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background: var(--accent-soft);
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color: var(--ink);
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}
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:focus-visible {
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outline: 2px solid var(--focus);
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outline-offset: 3px;
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box-shadow: 0 0 0 2px var(--focus-gap), 0 0 0 5px var(--focus-ring);
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}
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.container {
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width: min(calc(100% - 40px), var(--content-width));
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min-width: 0;
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margin-inline: auto;
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}
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.skip-link {
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position: fixed;
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z-index: 100;
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top: var(--space-3);
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left: var(--space-3);
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padding: 9px 13px;
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transform: translateY(-180%);
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border: 1px solid var(--inverse-ink);
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background: var(--inverse);
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color: var(--inverse-ink);
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}
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.skip-link:focus {
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transform: translateY(0);
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}
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.page-progress {
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position: fixed;
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z-index: 90;
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top: 0;
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right: 0;
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left: 0;
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height: 3px;
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transform: scaleX(0);
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transform-origin: left;
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background: var(--accent);
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opacity: 0;
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}
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.page-progress.htmx-request {
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transform: scaleX(0.72);
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opacity: 1;
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transition: transform 700ms ease, opacity 160ms ease;
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}
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.site-header {
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position: sticky;
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z-index: 40;
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top: 0;
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border-bottom: 1px solid var(--line-strong);
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background: var(--paper-raised);
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}
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.header-inner {
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display: flex;
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min-width: 0;
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min-height: var(--header-height);
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align-items: center;
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gap: 20px;
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}
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.header-inner::before,
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.header-inner::after {
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position: absolute;
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top: 50%;
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width: 12px;
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height: 1px;
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background: var(--accent);
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content: "";
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}
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.header-inner::before {
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left: max(4px, calc((100vw - var(--content-width)) / 2 - 24px));
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}
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.header-inner::after {
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right: max(4px, calc((100vw - var(--content-width)) / 2 - 24px));
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}
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.header-navigation {
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display: flex;
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min-width: 0;
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flex: 1;
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align-items: center;
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justify-content: space-between;
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gap: var(--space-3);
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}
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.site-nav,
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.utility-nav {
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display: flex;
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min-width: 0;
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align-items: center;
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gap: var(--space-1);
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}
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.menu-button {
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display: none;
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}
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.content-band {
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padding-block: var(--space-9);
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border-bottom: 1px solid var(--line-strong);
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background: var(--paper);
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}
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.content-band:nth-of-type(even) {
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background: var(--paper-alt);
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}
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.section-layout {
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display: grid;
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min-width: 0;
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grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.8fr);
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gap: var(--space-8);
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align-items: start;
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}
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.section-heading {
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min-width: 0;
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max-width: 560px;
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}
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.section-heading p {
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margin-bottom: 0;
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color: var(--ink-soft);
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}
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.site-footer {
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border-top: 1px solid var(--line-strong);
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background: var(--paper-alt);
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color: var(--ink-soft);
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}
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.footer-inner {
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display: grid;
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min-width: 0;
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grid-template-columns: minmax(260px, 1.5fr) auto;
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gap: var(--space-6) var(--space-8);
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align-items: center;
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padding-block: var(--space-7);
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}
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.footer-brand {
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display: flex;
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min-width: 0;
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align-items: center;
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gap: var(--space-3);
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}
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.footer-brand p,
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.footer-note {
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margin: 2px 0 0;
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color: var(--ink-muted);
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font-size: 0.86rem;
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}
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.footer-brand .footer-motto {
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margin-top: 7px;
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color: var(--ink-soft);
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font-size: 0.74rem;
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letter-spacing: 0.1em;
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line-height: 1.5;
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}
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.footer-nav {
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display: flex;
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flex-wrap: wrap;
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justify-content: flex-end;
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gap: var(--space-5);
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}
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.footer-nav a {
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color: var(--ink-soft);
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font-size: 0.88rem;
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text-decoration: none;
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text-underline-offset: 3px;
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}
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.footer-nav a:hover {
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color: var(--accent-text);
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text-decoration: underline;
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}
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.footer-note {
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grid-column: 1 / -1;
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padding-top: var(--space-4);
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border-top: 1px solid var(--line);
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}
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@media (max-width: 1200px) {
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.header-inner::before,
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.header-inner::after {
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display: none;
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}
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.js .menu-button {
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display: inline-flex;
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margin-left: auto;
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}
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.header-navigation {
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position: absolute;
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z-index: 2;
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top: calc(100% + 1px);
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right: 0;
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left: 0;
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display: grid;
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max-height: calc(100dvh - var(--header-height) - 1px);
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padding: var(--space-3) 20px var(--space-4);
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overflow-y: auto;
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border-bottom: 1px solid var(--line-strong);
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background: var(--paper-raised);
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}
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.js .header-navigation {
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display: none;
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}
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.js .header-navigation[data-open="true"] {
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display: grid;
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}
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.site-nav,
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.utility-nav {
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align-items: stretch;
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}
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.site-nav {
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display: grid;
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grid-template-columns: repeat(3, minmax(0, 1fr));
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}
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.utility-nav {
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display: grid;
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grid-template-columns: repeat(4, minmax(0, 1fr));
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justify-content: flex-end;
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padding-top: var(--space-3);
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border-top: 1px solid var(--line);
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}
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.utility-nav > * {
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width: 100%;
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min-height: 44px;
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}
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}
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@media (max-width: 960px) {
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.section-layout {
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grid-template-columns: 1fr;
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gap: var(--space-6);
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}
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}
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@media (max-width: 560px) {
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.utility-nav {
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grid-template-columns: repeat(2, minmax(0, 1fr));
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}
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}
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@media (max-width: 720px) {
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.container {
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width: min(calc(100% - 28px), var(--content-width));
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}
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.content-band {
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padding-block: var(--space-7);
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}
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.footer-inner {
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grid-template-columns: 1fr;
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}
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.footer-nav {
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justify-content: flex-start;
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gap: var(--space-3) var(--space-5);
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}
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}
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@media (max-width: 420px) {
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.container {
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width: min(calc(100% - 20px), var(--content-width));
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}
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.header-navigation {
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padding-inline: 10px;
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}
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.site-nav {
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grid-template-columns: repeat(2, minmax(0, 1fr));
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}
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.utility-nav {
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grid-template-columns: repeat(2, minmax(0, 1fr));
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}
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}
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@media (prefers-reduced-motion: reduce) {
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html {
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scroll-behavior: auto;
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}
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*,
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*::before,
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*::after {
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transition-duration: 0.01ms !important;
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animation-duration: 0.01ms !important;
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animation-iteration-count: 1 !important;
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}
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}
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