/* 延续已选定的居家视觉：浅灰绿、自然材质、大幅图片与克制的文字。 */
:root {
  color-scheme: light dark;
  --bg: #fafcf9;
  --surface: #eef3ed;
  --paper: #f5f8f3;
  --text: #27312b;
  --muted: #626e62;
  --line: #dbe2d8;
  --accent: #3c6554;
  --on-accent: #fafcf9;
  --overlay: rgb(26 39 31 / 45%);
  --radius: 4px;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #222b25; --surface: #2d3930; --paper: #28332b; --text: #edf2eb; --muted: #b7c4b5; --line: #475649; --accent: #b2d1b9; --on-accent: #223327; --overlay: rgb(10 20 14 / 70%); }
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: 30px; }
body { margin: 0; color: var(--text); background: var(--bg); }
body:has(dialog[open]) { overflow: hidden; }
button, input, textarea, select { font: inherit; }
button, a, input, textarea, select, summary { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button, input, textarea, select { border-radius: var(--radius); }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
button, a { touch-action: manipulation; }
a, button { text-underline-offset: 5px; }
button:focus-visible, a:focus-visible, summary:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
::selection { background: var(--accent); color: var(--on-accent); }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { font-weight: 450; }
img { display: block; width: 100%; height: auto; object-fit: cover; background: var(--surface); }
button { border: 0; background: none; }
button:disabled { cursor: default; }
[hidden] { display: none !important; }
.shell { width: min(1240px, calc(100% - 112px)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.muted { color: var(--muted); }
.mobile-break { display: none; }
.skip-link { position: fixed; top: 8px; left: 8px; padding: 12px; background: var(--accent); color: var(--on-accent); z-index: 100; transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.site-header { height: 80px; display: flex; align-items: center; gap: 38px; border-bottom: 1px solid var(--line); position: relative; z-index: 10; }
.brand { display: flex; align-items: center; gap: 23px; margin-right: auto; }
.wordmark { letter-spacing: .15em; font-size: 25px; font-weight: 500; white-space: nowrap; }
.brand-description { border-left: 1px solid var(--line); padding-left: 23px; color: var(--muted); font-size: 12px; }
.desktop-nav { display: flex; align-items: center; gap: 32px; font-size: 13px; }
.desktop-nav a { display: flex; min-height: 44px; align-items: center; }
.desktop-nav a[aria-current] { color: var(--accent); text-decoration: underline; }
.header-contact { color: var(--accent); padding: 0 0 0 28px; border-left: 1px solid var(--line); min-height: 24px; font-size: 13px; white-space: nowrap; }
.header-contact span { margin-left: 12px; }
.menu-toggle, .mobile-nav { display: none; }
.text-link { display: inline-flex; align-items: center; gap: 28px; min-height: 44px; font-size: 14px; color: var(--accent); border-bottom: 1px solid var(--accent); padding: 6px 0; width: fit-content; }
.text-link span { font-size: 20px; font-weight: 400; }
.hero { display: grid; grid-template-columns: .78fr 1.22fr; gap: 66px; padding-top: 62px; padding-bottom: 80px; align-items: start; }
.hero-copy { padding-top: 46px; }
.greeting { color: var(--accent); font-size: 15px; margin-bottom: 25px; }
.hero h1 { font-size: clamp(40px, 3.65vw, 54px); line-height: 1.55; letter-spacing: .055em; }
.hero-description { max-width: 310px; font-size: 15px; color: var(--muted); line-height: 2; margin-top: 24px; }
.hero-link { margin-top: 35px; }
.hero-visual { min-width: 0; }
.annotated-image { position: relative; border-radius: var(--radius); }
.annotated-image img { aspect-ratio: 1.38; border-radius: var(--radius); height: 100%; object-fit: cover; }
/* 批注以文字直接说明内容，引线终点对应配置坐标，不遮住主要物件。 */
.image-note { position: absolute; left: var(--x); top: var(--y); min-height: 44px; padding: 0; display: inline-flex; align-items: center; border-radius: 0; color: #3c6554; }
.image-note-to-left { transform: translate(-100%, -50%); }
.image-note-to-right { transform: translate(0, -50%); }
.image-note-label { display: block; padding: 6px 10px; font-size: 11px; line-height: 1.6; letter-spacing: .04em; white-space: nowrap; background: rgb(250 252 249 / 96%); border-radius: 2px; box-shadow: inset 0 -2px 0 transparent; }
.image-note[aria-pressed="true"] .image-note-label { box-shadow: inset 0 -2px 0 #3c6554; }
.image-note-leader { width: 32px; height: 1px; position: relative; background: #fafcf9; box-shadow: 0 1px 1px rgb(39 49 43 / 20%); }
.image-note-leader::after { content: ""; position: absolute; right: 0; top: -2px; width: 5px; height: 5px; border-radius: 50%; background: #fafcf9; }
.image-note-to-right .image-note-leader { order: -1; }
.image-note-to-right .image-note-leader::after { right: auto; left: 0; }
.hero-caption { display: flex; justify-content: space-between; gap: 12px; margin-top: 12px; color: var(--muted); font-size: 10px; }
.hero-note { display: grid; grid-template-columns: 98px 1fr; gap: 24px; padding-top: 25px; margin-top: 21px; border-top: 1px solid var(--line); }
.note-tabs { display: flex; flex-direction: column; align-items: start; gap: 3px; }
.note-tabs button { color: var(--muted); font-size: 12px; min-height: 38px; padding: 0; text-align: left; }
.note-tabs button[aria-pressed="true"] { color: var(--accent); text-decoration: underline; text-underline-offset: 7px; }
.note-content h2 { font-size: 16px; margin-bottom: 8px; }
.note-content p { color: var(--muted); font-size: 12px; line-height: 1.9; max-width: 410px; }
.section-label { color: var(--accent); font-size: 12px; letter-spacing: .06em; margin-bottom: 14px; }
.section-heading { margin-bottom: 36px; }
.section-heading h2, .about-copy h2, .faq-section h2 { font-size: 30px; letter-spacing: .035em; line-height: 1.65; }
.section-heading > p:last-child:not(.section-label) { color: var(--muted); font-size: 14px; margin-top: 12px; }
.design-section { padding-top: 36px; padding-bottom: 94px; border-top: 1px solid var(--line); }
.filters { display: flex; gap: 29px; margin-bottom: 30px; }
.filters button { display: flex; align-items: baseline; gap: 8px; padding: 7px 0; min-height: 44px; font-size: 13px; color: var(--muted); border-bottom: 1px solid transparent; }
.filters button[aria-pressed="true"] { color: var(--accent); border-bottom-color: var(--accent); }
.filters span { font-size: 10px; }
.project-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: start; }
.project-grid-home .project-card:nth-child(even) { margin-top: 88px; }
.project-image-link { display: block; position: relative; overflow: hidden; border-radius: var(--radius); }
.project-image-link img { aspect-ratio: 1.28; width: 100%; height: 100%; }
.project-grid .project-card:nth-child(even) .project-image-link img { aspect-ratio: 1.1; }
.image-open { position: absolute; bottom: 16px; right: 16px; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--bg); color: var(--accent); font-size: 24px; opacity: 0; transform: translateY(8px); }
.project-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; margin-top: 19px; }
.project-card h3 { font-size: 22px; margin-top: 9px; letter-spacing: .025em; }
.project-card h3 a { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.project-card h3 span { font-size: 22px; color: var(--accent); }
.project-card > p:not(.image-credit) { font-size: 13px; color: var(--muted); line-height: 1.9; margin-top: 10px; max-width: 470px; }
.image-credit { font-size: 10px; margin-top: 12px; color: var(--muted); }
.section-more { display: flex; margin-top: 36px; }
.empty-state { color: var(--muted); background: var(--surface); padding: 32px; }
.about-section { background: var(--surface); padding-block: 76px; }
.about-inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 108px; align-items: center; }
.about-image { overflow: hidden; }
.about-image img { height: 320px; object-fit: cover; object-position: 85% 80%; border-radius: var(--radius); }
.about-image figcaption { display: flex; flex-direction: column; color: var(--muted); font-size: 11px; margin-top: 13px; }
.about-image figcaption span { font-size: 10px; }
.about-copy { position: relative; padding-bottom: 12px; }
.about-copy h2 { max-width: 360px; margin-bottom: 23px; text-wrap: balance; }
.about-copy > p:not(.section-label) { color: var(--muted); font-size: 14px; line-height: 2; max-width: 460px; margin-bottom: 14px; }
.about-copy .text-link { margin-top: 12px; }
.signature { display: block; width: fit-content; margin-left: auto; margin-top: 18px; font-size: 23px; font-family: "Kaiti SC", "STKaiti", "KaiTi", serif; letter-spacing: .2em; transform: rotate(-7deg); color: var(--accent); }
.services-section { padding-block: 94px 82px; display: grid; grid-template-columns: .85fr 1.15fr; column-gap: 82px; }
.services-section .section-heading p { max-width: 280px; line-height: 1.9; }
details summary { cursor: pointer; list-style: none; }
details summary::-webkit-details-marker { display: none; }
.service-list details { border-bottom: 1px solid var(--line); }
.service-list summary { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding: 23px 0; }
.service-list details:first-child summary { padding-top: 0; }
.service-list summary strong { font-size: 18px; font-weight: 450; }
.service-summary { display: block; font-size: 12px; color: var(--muted); margin-top: 5px; }
.details-mark { font-size: 24px; color: var(--accent); font-weight: 300; flex-shrink: 0; }
details[open] > summary .details-mark { transform: rotate(45deg); }
.service-description { padding-bottom: 22px; color: var(--muted); font-size: 13px; line-height: 1.95; }
.deliverables { margin-top: 13px; font-size: 11px; color: var(--accent); }
.process { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4,1fr); gap: 30px; margin-top: 62px; padding-top: 32px; border-top: 1px solid var(--line); }
.process > div { position: relative; }
.process > div:not(:last-child)::after { content: "→"; position: absolute; right: 17px; top: -1px; color: var(--muted); }
.process h3 { font-size: 14px; }
.process p { color: var(--muted); font-size: 11px; margin-top: 7px; }
.journal-section { border-top: 1px solid var(--line); padding-block: 52px 87px; }
.note-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.note-card { display: grid; grid-template-columns: 145px 1fr; gap: 24px; align-items: center; }
.note-image { display: block; overflow: hidden; border-radius: var(--radius); }
.note-image img { height: 165px; }
.note-text .section-label { font-size: 10px; margin-bottom: 10px; }
.note-text h3 { font-size: 19px; line-height: 1.65; }
.note-text h3 a { display: flex; align-items: start; gap: 8px; }
.note-title-copy { min-width: 0; }
.note-text h3 a > span:last-child { flex-shrink: 0; font-size: 16px; color: var(--accent); white-space: nowrap; }
.note-text > p:last-child { color: var(--muted); font-size: 12px; line-height: 1.85; margin-top: 11px; }
.faq-section { border-top: 1px solid var(--line); padding-block: 44px 86px; display: grid; grid-template-columns: .85fr 1.15fr; gap: 82px; }
.faq-section details { border-bottom: 1px solid var(--line); }
.faq-section summary { font-size: 14px; padding: 19px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.faq-section details:first-child summary { padding-top: 5px; }
.faq-section details p { color: var(--muted); font-size: 13px; padding-bottom: 22px; line-height: 1.9; }
.contact-section { background: var(--surface); padding: 53px 58px; border-radius: var(--radius); display: flex; justify-content: space-between; align-items: center; gap: 40px; }
.contact-section .section-label { margin-bottom: 18px; }
.contact-section h2 { font-size: 34px; letter-spacing: .06em; line-height: 1.6; }
.contact-section h2 + p { color: var(--muted); font-size: 13px; margin-top: 15px; line-height: 1.9; }
.contact-action { max-width: 255px; padding-top: 28px; }
.contact-action p { color: var(--muted); font-size: 11px; margin-top: 17px; }
.button { min-height: 49px; display: inline-flex; align-items: center; justify-content: space-between; gap: 35px; padding: 12px 23px; font-size: 13px; border: 1px solid transparent; border-radius: var(--radius); white-space: nowrap; }
.primary { background: var(--accent); color: var(--on-accent); }
.secondary { border-color: var(--line); color: var(--accent); background: var(--bg); }
.button span { font-size: 20px; line-height: 1; }
.social-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; align-items: start; padding-block: 48px 40px; border-bottom: 1px solid var(--line); }
.social-intro .section-label { margin-bottom: 13px; }
.social-intro h2 { font-size: 23px; line-height: 1.6; letter-spacing: .04em; }
.social-intro > p:last-child { margin-top: 12px; color: var(--muted); font-size: 12px; }
.social-channels { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 26px; }
.social-channel { display: flex; align-items: center; gap: 13px; min-width: 0; min-height: 82px; padding: 16px 0; border-bottom: 1px solid var(--line); border-radius: 0; text-align: left; }
.social-icon { display: flex; align-items: center; justify-content: center; flex: 0 0 40px; width: 40px; height: 40px; color: var(--accent); }
.social-icon svg { width: 25px; height: 25px; fill: currentColor; }
.social-icon-xiaohongshu svg { width: 40px; height: 40px; }
.social-copy { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.social-name { font-size: 13px; color: var(--text); }
.social-description { font-size: 10px; color: var(--muted); line-height: 1.6; overflow-wrap: anywhere; }
.social-channel > span:last-child[aria-hidden] { margin-left: auto; color: var(--accent); font-size: 18px; }
.social-channel:disabled .social-icon { color: var(--muted); }
.site-footer { display: flex; align-items: center; gap: 27px; padding-block: 33px; color: var(--muted); font-size: 10px; flex-wrap: wrap; }
.footer-brand { color: var(--text); font-size: 17px; letter-spacing: .12em; }
.footer-links { display: flex; gap: 24px; margin-left: auto; }
.back-link { display: inline-flex; align-items: center; min-height: 44px; font-size: 12px; color: var(--muted); margin-bottom: 39px; }
.page-intro { padding-block: 42px 50px; }
.page-intro h1 { font-size: 43px; line-height: 1.6; letter-spacing: .05em; }
.page-intro > p:not(.section-label) { color: var(--muted); font-size: 14px; margin-top: 16px; }
.page-intro .page-notice { font-size: 11px !important; max-width: 550px; }
.collection-section { padding-bottom: 100px; }
.collection-section .project-grid { row-gap: 65px; }
.collection-section .project-card:nth-child(even) { margin-top: 55px; }
.project-intro { padding-block: 36px 39px; }
.project-intro h1 { font-size: 40px; line-height: 1.6; letter-spacing: .035em; text-wrap: balance; }
.intro-subtitle { margin-top: 13px; color: var(--muted); font-size: 16px; }
.page-notice { color: var(--muted); font-size: 11px; margin-top: 18px; }
.case-cover img { aspect-ratio: 1.9; max-height: 660px; border-radius: var(--radius); }
.case-cover figcaption, .case-gallery figcaption, .article-cover figcaption { font-size: 11px; color: var(--muted); margin-top: 12px; }
.case-body { display: grid; grid-template-columns: .65fr 1.35fr; gap: 95px; padding-block: 65px; }
.case-facts h2 { font-size: 15px; margin-bottom: 24px; }
.case-facts dl { margin: 0; }
.case-facts dl > div { margin-bottom: 25px; }
.case-facts dt { color: var(--muted); font-size: 11px; }
.case-facts dd { font-size: 13px; margin: 5px 0 0; }
.case-story { max-width: 650px; }
.story-lead { font-size: 19px; line-height: 1.95; margin-bottom: 39px; }
.case-story section + section { margin-top: 32px; }
.case-story h2 { font-size: 23px; margin-bottom: 13px; }
.case-story section p { color: var(--muted); font-size: 14px; line-height: 2.05; }
.case-gallery { margin-bottom: 65px; }
.case-gallery figure + figure { margin-top: 38px; }
.lightbox-trigger { padding: 0; width: 100%; position: relative; }
.lightbox-trigger img { max-height: 740px; border-radius: var(--radius); }
.lightbox-trigger > span { display: block; text-align: right; font-size: 11px; color: var(--accent); margin-top: 12px; }
.next-project { border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto; padding-block: 32px 60px; }
.next-project > span:first-child, .next-article > span:first-child { color: var(--muted); font-size: 12px; }
.next-project strong { grid-column: 1; font-size: 27px; font-weight: 450; margin-top: 8px; }
.next-project > span:last-child { grid-column: 2; grid-row: 1 / 3; align-self: center; font-size: 36px; color: var(--accent); }
.journal-list { padding-block: 10px 110px; }
.journal-list .note-grid { row-gap: 60px; }
.article-intro { max-width: 850px; padding-block: 35px 40px; }
.article-intro h1 { font-size: 37px; line-height: 1.65; letter-spacing: .02em; }
.article-intro > p:not(.section-label) { color: var(--muted); font-size: 15px; margin-top: 17px; }
.article-intro .article-byline { font-size: 11px !important; margin-top: 22px !important; }
.article-cover { max-width: 850px; }
.article-cover img { aspect-ratio: 1.65; border-radius: var(--radius); }
.article-body, .next-article { width: min(680px, calc(100% - 112px)); margin-inline: auto; }
.article-body { padding-block: 55px 35px; }
.article-body section + section { margin-top: 36px; }
.article-body h2 { font-size: 23px; margin-bottom: 15px; }
.article-body p { font-size: 15px; color: var(--muted); line-height: 2.15; }
.next-article { display: flex; flex-direction: column; gap: 12px; border-top: 1px solid var(--line); padding-block: 26px 65px; }
.next-article strong { font-size: 22px; font-weight: 450; }
.next-article > span:last-child { color: var(--accent); font-size: 23px; }
.not-found { padding-block: 110px; }
.not-found h1 { font-size: 36px; margin-bottom: 18px; }
.not-found p:not(.section-label) { color: var(--muted); }
.not-found .button { margin-top: 27px; }
dialog { color: var(--text); background: var(--bg); border: 1px solid var(--line); padding: 0; border-radius: 8px; }
dialog::backdrop { background: var(--overlay); }
.contact-dialog { width: min(630px, calc(100% - 32px)); max-height: calc(100dvh - 48px); }
.dialog-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 10px 23px; border-bottom: 1px solid var(--line); font-size: 11px; color: var(--muted); position: sticky; top: 0; background: var(--bg); z-index: 1; }
.icon-button { min-width: 44px; min-height: 44px; font-size: 27px; line-height: 1; color: var(--accent); }
.dialog-body { padding: 25px 30px 30px; }
.dialog-body h2 { font-size: 29px; margin-bottom: 8px; }
.dialog-body > .muted { font-size: 13px; }
.contact-pending, .contact-channels { margin-block: 19px 22px; padding: 15px 18px; font-size: 12px; color: var(--muted); background: var(--surface); border-radius: var(--radius); }
.contact-channels strong { overflow-wrap: anywhere; }
.qr-image { width: 160px; height: 160px; margin-bottom: 15px; object-fit: contain; }
.contact-channels .text-link { font-size: 12px; }
#brief-form { display: flex; flex-direction: column; gap: 17px; margin-top: 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
label { display: flex; flex-direction: column; gap: 7px; font-size: 12px; }
label > .muted { display: contents; }
input, textarea, select { color: var(--text); border: 1px solid var(--line); background: var(--paper); padding: 11px 12px; font-size: 14px; width: 100%; min-width: 0; }
input, select { min-height: 46px; }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: 1; }
textarea { resize: vertical; }
.form-privacy { font-size: 10px; color: var(--muted); }
.brief-result { margin-top: 27px; }
.brief-result h3 { font-size: 18px; margin-bottom: 15px; }
#brief-output { font-size: 13px; line-height: 1.9; }
.result-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 17px; align-items: center; }
.result-actions .button { gap: 12px; padding-inline: 18px; }
.result-actions .text-link { font-size: 12px; }
.feedback { font-size: 12px; color: var(--accent); margin-top: 13px; min-height: 21px; }
.lightbox { width: min(1200px, calc(100% - 32px)); max-height: calc(100dvh - 40px); padding: 45px 16px 16px; }
.lightbox .icon-button { position: absolute; right: 8px; top: 0; }
.lightbox img { max-height: calc(100dvh - 160px); width: 100%; object-fit: contain; }
.lightbox p { font-size: 12px; color: var(--muted); margin-top: 13px; }
.image-error { display: block; padding: 15px; color: var(--muted); background: var(--surface); font-size: 12px; }
@media (hover: hover) {
  .desktop-nav a:hover, .back-link:hover, .footer-links a:hover { color: var(--accent); text-decoration: underline; }
  .project-image-link:hover .image-open { opacity: 1; transform: none; }
  .project-image-link:hover img, .note-image:hover img { transform: scale(1.025); }
  .project-card h3 a:hover, .note-text h3 a:hover { color: var(--accent); }
  .primary:hover { filter: brightness(1.08); }
  .social-channel:not(:disabled):hover .social-name { color: var(--accent); text-decoration: underline; }
  .text-link:hover { gap: 36px; }
  .image-note:hover .image-note-label { box-shadow: inset 0 -2px 0 #3c6554; }
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  .project-image-link img, .note-image img { transition: transform 400ms ease; }
  .image-open, .details-mark { transition: transform 220ms ease, opacity 220ms ease; }
  .image-note-label { transition: box-shadow 180ms ease; }
  .text-link { transition: gap 220ms ease; }
}
@media (max-width: 1100px) {
  .shell { width: calc(100% - 72px); }
  .brand-description { display: none; }
  .site-header { gap: 28px; }
  .hero { grid-template-columns: .8fr 1.2fr; gap: 36px; padding-top: 44px; }
  .hero-copy { padding-top: 27px; }
  .hero h1 { font-size: 39px; }
  .hero-description { max-width: 275px; font-size: 14px; }
  .hero-note { gap: 16px; grid-template-columns: 83px 1fr; }
  .note-content h2 { font-size: 14px; }
  .project-grid { gap: 38px; }
  .about-inner { gap: 55px; }
  .services-section, .faq-section { column-gap: 45px; }
  .note-card { grid-template-columns: 115px 1fr; gap: 20px; }
  .note-text h3 { font-size: 17px; }
  .note-grid { gap: 35px; }
  .contact-section { padding-inline: 40px; }
}
@media (max-width: 767px) {
  .mobile-break { display: revert; }
  html { scroll-padding-top: 20px; }
  .shell { width: calc(100% - 40px); }
  .site-header { height: 64px; gap: 16px; }
  .wordmark { font-size: 23px; }
  .desktop-nav, .header-contact { display: none; }
  .menu-toggle { display: flex; align-items: center; gap: 13px; min-height: 44px; padding: 0; font-size: 12px; color: var(--accent); }
  .menu-toggle span { font-size: 24px; font-weight: 300; }
  .menu-toggle[aria-expanded="true"] span { transform: rotate(45deg); }
  .mobile-nav { position: absolute; top: 63px; left: -20px; right: -20px; padding: 18px 20px 24px; border-bottom: 1px solid var(--line); background: var(--bg); display: flex; flex-direction: column; box-shadow: 0 12px 20px rgb(39 49 43 / 5%); }
  .mobile-nav a, .mobile-nav button { display: flex; align-items: center; justify-content: space-between; min-height: 50px; font-size: 15px; text-align: left; padding: 5px 0; }
  .mobile-nav button { color: var(--accent); }
  /* 手机先呈现介绍、图片与设计说明，再接浏览入口。 */
  .hero { display: flex; flex-direction: column; gap: 0; padding-top: 24px; padding-bottom: 32px; }
  .hero-copy { display: contents; }
  .greeting { font-size: 13px; margin-bottom: 11px; }
  .hero h1 { font-size: 32px; line-height: 1.42; letter-spacing: .035em; }
  .hero-description { font-size: 14px; line-height: 1.85; max-width: none; margin-top: 12px; }
  .hero-visual { order: 1; width: 100%; margin-top: 20px; }
  .hero-link { order: 2; margin-top: 14px; font-size: 13px; gap: 25px; }
  .annotated-image img { aspect-ratio: 1.4; height: auto; }
  .image-note { display: none; }
  .hero-caption { font-size: 10px; gap: 8px; margin-top: 8px; }
  .hero-note { grid-template-columns: 1fr; gap: 12px; margin-top: 12px; padding-top: 0; border-top: 0; }
  .note-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-bottom: 1px solid var(--line); }
  .note-tabs button { min-height: 44px; padding: 0 8px; text-align: center; font-size: 13px; border-bottom: 2px solid transparent; margin-bottom: -1px; }
  .note-tabs button[aria-pressed="true"] { text-decoration: none; border-bottom-color: var(--accent); }
  .note-content h2 { font-size: 16px; line-height: 1.65; margin-bottom: 6px; }
  .note-content p { font-size: 13px; line-height: 1.9; }
  .section-label { font-size: 11px; margin-bottom: 11px; }
  .section-heading { margin-bottom: 23px; }
  .section-heading h2, .about-copy h2, .faq-section h2 { font-size: 24px; line-height: 1.6; letter-spacing: .01em; text-wrap: balance; }
  .section-heading > p:last-child:not(.section-label) { font-size: 14px; line-height: 1.85; max-width: none; margin-top: 10px; }
  .design-section { padding-top: 30px; padding-bottom: 49px; }
  .filters { gap: 26px; margin-bottom: 23px; }
  .filters button { font-size: 12px; }
  .project-grid { grid-template-columns: 1fr; gap: 36px; }
  .project-grid-home .project-card:nth-child(even), .collection-section .project-card:nth-child(even) { margin-top: 0; }
  .project-image-link img, .project-grid .project-card:nth-child(even) .project-image-link img { aspect-ratio: 1.3; }
  .project-meta { font-size: 11px; margin-top: 13px; }
  .project-card h3 { font-size: 20px; margin-top: 8px; }
  .project-card > p:not(.image-credit) { font-size: 14px; line-height: 1.85; margin-top: 8px; }
  .image-credit { font-size: 11px; margin-top: 10px; }
  .section-more { margin-top: 25px; font-size: 12px; }
  .about-section { padding-block: 35px; }
  .about-inner { grid-template-columns: 1fr; gap: 30px; }
  .about-image img { height: 230px; }
  .about-image figcaption { display: flex; flex-direction: row; justify-content: space-between; gap: 10px; font-size: 10px; }
  .about-copy h2 { max-width: 280px; margin-bottom: 16px; }
  .about-copy > p:not(.section-label) { font-size: 14px; line-height: 1.9; }
  .about-copy .text-link { font-size: 12px; margin-top: 5px; }
  .signature { margin-top: 0; }
  .services-section { grid-template-columns: 1fr; gap: 0; padding-block: 45px; }
  .services-section .section-heading p { max-width: 310px; }
  .service-list { margin-top: 10px; }
  .service-list summary { padding-block: 20px; }
  .service-list summary strong { font-size: 17px; }
  .service-summary { font-size: 13px; margin-top: 6px; }
  .service-description { font-size: 14px; }
  .deliverables { font-size: 11px; }
  .process { grid-template-columns: 1fr 1fr; gap: 26px 22px; margin-top: 30px; padding-top: 26px; }
  .process h3 { font-size: 13px; }
  .process p { font-size: 12px; margin-top: 5px; }
  .process > div::after { display: none; }
  .journal-section { padding-block: 32px 45px; }
  .note-grid { grid-template-columns: 1fr; gap: 27px; }
  .note-card { grid-template-columns: 107px 1fr; gap: 19px; }
  .note-image img { height: 140px; }
  .note-text h3 { font-size: 17px; }
  .note-text .section-label { font-size: 11px; margin-bottom: 7px; }
  .note-text > p:last-child { font-size: 13px; margin-top: 9px; }
  .faq-section { grid-template-columns: 1fr; gap: 23px; padding-block: 32px 42px; }
  .faq-section summary { font-size: 14px; padding-block: 16px; gap: 10px; }
  .faq-section details p { font-size: 14px; }
  .contact-section { padding: 28px 25px; display: block; }
  .contact-section .section-label { font-size: 10px; margin-bottom: 12px; }
  .contact-section h2 { font-size: 28px; }
  .contact-section h2 + p { font-size: 12px; margin-top: 13px; }
  .contact-action { padding-top: 23px; max-width: none; }
  .contact-action .button { width: 100%; }
  .contact-action p { font-size: 10px; margin-top: 12px; }
  .social-section { grid-template-columns: 1fr; gap: 22px; padding-block: 32px 27px; }
  .social-intro .section-label { font-size: 10px; margin-bottom: 10px; }
  .social-intro h2 { font-size: 22px; }
  .social-intro > p:last-child { font-size: 11px; margin-top: 9px; }
  .social-channels { gap: 0 18px; }
  .social-channel { min-height: 76px; gap: 9px; }
  .social-icon { flex-basis: 30px; width: 30px; }
  .social-icon svg { width: 23px; height: 23px; }
  .social-icon-xiaohongshu svg { width: 32px; height: 32px; }
  .social-description { font-size: 10px; }
  .site-footer { padding-block: 25px; gap: 10px 19px; }
  .footer-brand { font-size: 16px; }
  .site-footer > span { font-size: 9px; }
  .footer-links { width: 100%; margin: 0; font-size: 9px; }
  .back-link { font-size: 11px; margin-bottom: 25px; }
  .page-intro { padding-block: 23px 32px; }
  .page-intro h1 { font-size: 32px; }
  .page-intro > p:not(.section-label) { font-size: 12px; margin-top: 11px; }
  .page-intro .page-notice { font-size: 10px !important; }
  .collection-section { padding-bottom: 45px; }
  .collection-section .project-grid { row-gap: 36px; }
  .project-intro { padding-block: 20px 27px; }
  .project-intro h1 { font-size: 29px; line-height: 1.65; }
  .intro-subtitle { font-size: 13px; margin-top: 10px; }
  .page-notice { font-size: 10px; line-height: 1.9; margin-top: 13px; }
  .case-cover img { aspect-ratio: 1.2; }
  .case-cover figcaption, .case-gallery figcaption, .article-cover figcaption { font-size: 10px; }
  .case-body { grid-template-columns: 1fr; gap: 28px; padding-block: 32px; }
  .case-facts { border-bottom: 1px solid var(--line); padding-bottom: 22px; }
  .case-facts h2 { font-size: 14px; margin-bottom: 19px; }
  .case-facts dl { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .case-facts dl > div { margin: 0; }
  .case-facts dl > div:last-child { grid-column: 1 / -1; }
  .case-facts dt { font-size: 10px; }
  .case-facts dd { font-size: 12px; }
  .story-lead { font-size: 16px; margin-bottom: 25px; }
  .case-story h2 { font-size: 20px; margin-bottom: 12px; }
  .case-story section p { font-size: 14px; }
  .case-story section + section { margin-top: 26px; }
  .case-gallery { margin-bottom: 30px; }
  .lightbox-trigger img { aspect-ratio: 1.25; }
  .next-project { padding-block: 25px 38px; }
  .next-project strong { font-size: 21px; }
  .next-project > span:first-child { font-size: 11px; }
  .next-project > span:last-child { font-size: 28px; }
  .journal-list { padding-block: 5px 50px; }
  .article-intro { padding-block: 20px 25px; }
  .article-intro h1 { font-size: 29px; line-height: 1.65; }
  .article-intro > p:not(.section-label) { font-size: 12px; margin-top: 12px; }
  .article-cover img { aspect-ratio: 1.25; }
  .article-body, .next-article { width: calc(100% - 48px); }
  .article-body { padding-block: 33px; }
  .article-body h2 { font-size: 21px; }
  .article-body p { font-size: 14px; line-height: 2.1; }
  .next-article { padding-bottom: 40px; }
  .next-article strong { font-size: 20px; }
  .not-found { padding-block: 70px; }
  .not-found h1 { font-size: 27px; }
  .contact-dialog { max-height: calc(100dvh - 24px); }
  .dialog-heading { padding-inline: 18px; }
  .dialog-body { padding: 21px 21px 25px; }
  .dialog-body h2 { font-size: 25px; }
  .dialog-body > .muted { font-size: 12px; }
  .contact-pending { font-size: 11px; padding: 12px 14px; }
  .form-grid { grid-template-columns: 1fr; gap: 15px; }
  input, select, textarea { font-size: 16px; }
  .result-actions .button { flex: 1; padding-inline: 13px; }
}
@media (max-width: 360px) {
  .shell { width: calc(100% - 32px); }
  .hero h1 { font-size: 30px; }
  .hero-caption { flex-direction: column; gap: 2px; }
  .section-heading h2 { font-size: 23px; }
  .note-card { grid-template-columns: 85px 1fr; gap: 16px; }
  .note-text h3 { font-size: 16px; }
  .mobile-nav { left: -16px; right: -16px; padding-inline: 16px; }
}