@import url('../homepage/fonts.css');

/* 01 共用视觉规范。联系页只有这一份布局样式。 */
:root { --paper: #f6f3eb; --ink: #242320; --accent: #bc432a; --muted: #69645d; --line: #24232030; --gutter: clamp(22px, 5vw, 88px); --draw-duration: 650ms; --feedback-duration: 220ms; --ease: cubic-bezier(.22, 1, .36, 1); }
* { box-sizing: border-box; }
html { background: var(--paper); color: var(--ink); }
body { margin: 0; font: 16px/1.5 'Space Grotesk', Arial, 'Microsoft YaHei', sans-serif; }
a { color: inherit; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
button, a { -webkit-tap-highlight-color: transparent; }
.contact-nav { min-height: 100px; padding: 24px var(--gutter); display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-right: max(150px, var(--gutter)); }
.wordmark { font: 700 22px/1 Arial, sans-serif; letter-spacing: -.055em; text-decoration: none; white-space: nowrap; }
.wordmark-dot { color: var(--accent); font-size: 36px; }
.back-link { display: inline-flex; align-items: center; gap: 12px; min-height: 44px; text-decoration: none; font-size: 13px; }
.back-link > span:first-child { font-size: 24px; }
.back-link:hover { color: var(--accent); }
.language-toggle { position: fixed; top: 28px; right: 24px; z-index: 20; border: 1px solid var(--line); background: var(--paper); color: var(--ink); border-radius: 999px; padding: 9px 15px; min-height: 44px; font-size: 13px; }
main, .contact-footer { max-width: 1800px; margin: 0 auto; }
.eyebrow { font: 11px/1.5 monospace; letter-spacing: .13em; margin: 0 0 24px; }

/* 02 巨幅标题与留白；字体保持本地文件来源。 */
.brief-hero { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 3fr); gap: 5vw; align-items: end; padding: 65px var(--gutter) 85px; }
.brief-hero h1 { margin: 0; font: 500 clamp(62px, 7.8vw, 138px)/.98 Arial, 'Microsoft YaHei', sans-serif; letter-spacing: -.067em; }
.brief-hero h1 span, .brief-hero h1 em { display: block; }
.brief-hero h1 em { font-family: 'Instrument Serif', Georgia, 'Microsoft YaHei', serif; font-weight: 400; color: var(--accent); letter-spacing: -.045em; line-height: 1.08; }
.hero-intro { max-width: 30ch; margin: 0 0 8px; font-size: clamp(16px, 1.45vw, 23px); line-height: 1.5; }

/* 03 原生表单：信息顺序、焦点和无脚本提交保持可用。 */
.brief-layout { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(40px, 7vw, 115px); padding: 0 var(--gutter) 100px; }
form { min-width: 0; }
fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
legend { padding: 0; }
.required-note { font-size: 12px; color: var(--muted); margin: 0 0 38px; }
.brief-step { position: relative; margin: 0 0 56px; padding: 0 0 2px 25px; border-left: 1px solid var(--line); transition: border-color var(--feedback-duration); }
.brief-step:focus-within { border-color: var(--accent); }
.brief-step > legend { display: flex; align-items: baseline; gap: 16px; margin-bottom: 30px; font-size: 25px; letter-spacing: -.035em; }
.step-number { font: 12px/1 monospace; letter-spacing: 0; color: var(--accent); }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; align-items: start; margin-bottom: 25px; }
.field-grid > .field { margin-bottom: 0; }
.field { display: grid; gap: 9px; margin: 0 0 25px; }
.field:last-child { margin-bottom: 0; }
.field label, .choice-field legend { font-size: 13px; font-weight: 500; }
.field input, .field textarea { width: 100%; min-width: 0; min-height: 54px; padding: 15px 16px; border: 1px solid var(--line); border-radius: 4px; background: transparent; color: var(--ink); transition: border-color var(--feedback-duration), background-color var(--feedback-duration); }
.field textarea { resize: vertical; min-height: 205px; line-height: 1.7; }
.field input::placeholder, .field textarea::placeholder { color: #777169; font-size: 14px; }
.field input:focus, .field textarea:focus { border-color: var(--ink); outline: 3px solid #bc432a25; outline-offset: 1px; background: #fff5; }
.field:focus-within label { color: var(--accent); }
.field-meta { display: flex; align-items: start; justify-content: space-between; gap: 16px; color: var(--muted); font-size: 11px; line-height: 1.6; }
.field-meta p { margin: 0; }
#message-count { white-space: nowrap; font-family: monospace; }
.choice-field { margin-bottom: 30px; }
.choice-field:last-child { margin-bottom: 0; }
.choice-field legend { margin-bottom: 13px; }
.chips { display: flex; flex-wrap: wrap; gap: 9px; }
.chip { position: relative; display: inline-flex; align-items: center; min-height: 44px; padding: 10px 16px; border: 1px solid var(--line); border-radius: 999px; font-size: 13px; cursor: pointer; transition: color var(--feedback-duration), background-color var(--feedback-duration), border-color var(--feedback-duration); }
.chip input { position: absolute; width: 1px; height: 1px; opacity: 0; margin: 0; }
.chip:has(input:checked) { color: var(--paper); background: var(--ink); border-color: var(--ink); }
.chip:has(input:checked)::before { content: ''; width: 5px; height: 5px; background: #e58b71; border-radius: 50%; margin-right: 8px; }
.chip:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 4px; }
.chip:hover { border-color: var(--ink); }
.honey { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); pointer-events: none; }

/* 04 提交结果真实呈现；长地址和错误文本能够自然换行。 */
.privacy-note { color: var(--muted); font-size: 12px; line-height: 1.8; margin: 0 0 7px; }
.privacy-link { font-size: 12px; text-underline-offset: 4px; }
.submit-row { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; margin-top: 30px; }
.submit-row > p { flex: 1 1 160px; max-width: 28ch; color: var(--muted); font-size: 11px; margin: 0; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 25px; min-height: 56px; border-radius: 999px; padding: 9px 10px 9px 24px; border: 1px solid var(--ink); font-size: 14px; }
.button-primary { background: var(--ink); color: var(--paper); }
.button-primary:disabled { opacity: .6; }
.button-arrow { display: grid; place-items: center; height: 35px; width: 35px; border-radius: 50%; background: var(--accent); color: var(--paper); font: 22px/1 Arial; transition: transform var(--feedback-duration) var(--ease); }
.button:not(:disabled):hover .button-arrow { transform: rotate(45deg); }
.button-outline { background: transparent; color: var(--ink); padding: 12px 24px; margin-top: 15px; }
.text-button { background: transparent; border: 0; color: inherit; min-height: 44px; padding: 10px 0; text-decoration: underline; text-underline-offset: 4px; font-size: 12px; }
.brief-status { margin-top: 24px; padding: 20px; border: 1px solid var(--accent); border-left-width: 3px; font-size: 14px; line-height: 1.7; scroll-margin: 40px; }
.brief-status p { margin: 0; }
.brief-status strong:not(:empty) { display: block; color: var(--accent); margin-bottom: 8px; }
.brief-status[data-state='success'] { border-color: var(--ink); }
.email-fallback { border-top: 1px solid var(--line); margin-top: 42px; padding-top: 24px; display: flex; flex-wrap: wrap; align-items: center; gap: 0 14px; }
.email-fallback p { flex-basis: 100%; font-size: 12px; color: var(--muted); margin: 0 0 4px; }
.email-fallback a { font-size: clamp(16px, 1.5vw, 22px); text-decoration: none; overflow-wrap: anywhere; }
#email-copy-status { flex-basis: 100%; font-size: 12px; }

/* 05 一张原创线框草图，随输入事件更新。没有动画帧循环。 */
.draft-column { min-width: 0; }
.draft-sticky { position: sticky; top: 90px; padding-top: 52px; }
.draft-top { display: flex; align-items: start; justify-content: space-between; gap: 15px; }
.draft-top .eyebrow { margin-bottom: 11px; font-size: 9px; }
.draft-top h2 { font: 400 34px/1.1 'Instrument Serif', Georgia, 'Microsoft YaHei', serif; letter-spacing: -.035em; margin: 0; }
.draft-top .text-button { color: var(--muted); font-size: 10px; white-space: nowrap; }
.draft-intro { font-size: 12px; color: var(--muted); margin: 13px 0 25px; }
.draft-board { border: 1px solid var(--line); border-radius: 8px; background: #ebe6db70; box-shadow: 0 20px 50px -35px #24232044; overflow: hidden; }
.draft-board-bar { display: flex; align-items: center; justify-content: space-between; height: 35px; border-bottom: 1px solid var(--line); padding: 0 14px; font: 9px/1 monospace; letter-spacing: .1em; }
.board-dots { display: flex; gap: 4px; }
.board-dots i { width: 4px; height: 4px; border: 1px solid #24232060; border-radius: 50%; }
.draft-canvas { aspect-ratio: 460 / 370; position: relative; overflow: hidden; }
.draft-lines { display: block; width: 100%; height: 100%; stroke: var(--ink); stroke-width: 1; }
.draft-guide { opacity: .1; stroke-dasharray: 3 6; }
.draft-accent { stroke: var(--accent); }
.draft-layer { transition: opacity var(--draw-duration) var(--ease); }
.draft-layer path, .draft-layer circle[pathLength] { stroke-dasharray: 1; stroke-dashoffset: 0; transition: stroke-dashoffset var(--draw-duration) var(--ease); }
.contact-enhanced .draft-layer:not([data-active='true']) { opacity: .12; }
.contact-enhanced .draft-layer:not([data-active='true']) path, .contact-enhanced .draft-layer:not([data-active='true']) circle[pathLength] { stroke-dashoffset: 1; }
.draft-preview { position: absolute; left: 9.2%; top: 29%; width: 34%; }
.draft-preview > span { display: block; color: var(--accent); font: 8px/1.5 monospace; letter-spacing: .02em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.draft-preview strong { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-top: 9px; font: 500 clamp(17px, 2vw, 30px)/1.1 Arial, 'Microsoft YaHei', sans-serif; letter-spacing: -.05em; overflow-wrap: anywhere; }
.draft-preview p { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; font: 9px/1.6 Arial, 'Microsoft YaHei', sans-serif; color: var(--muted); margin: 9px 0 0; overflow-wrap: anywhere; }
.draft-stamp { position: absolute; right: 9%; top: 37%; border: 2px solid var(--accent); color: var(--accent); border-radius: 50%; width: 70px; height: 70px; display: grid; place-items: center; font: 44px Arial; background: var(--paper); transform: rotate(-12deg); }
.progress-row { display: flex; justify-content: space-between; align-items: baseline; margin: 28px 0 10px; }
.progress-row > span { font: 10px/1.5 monospace; color: var(--muted); }
.progress-row strong { font: 400 38px/1 'Space Grotesk', Arial, sans-serif; letter-spacing: -.06em; font-variant-numeric: tabular-nums; }
.progress-row strong span { font-size: 14px; margin-left: 5px; }
.progress-track { height: 1px; background: var(--line); }
.progress-track > span { display: block; height: 2px; width: 0; background: var(--accent); transition: width var(--draw-duration) var(--ease); }
.brief-summary { margin: 20px 0 0; }
.brief-summary > div { display: grid; grid-template-columns: 75px minmax(0, 1fr); gap: 12px; margin-bottom: 10px; font-size: 11px; line-height: 1.7; }
.brief-summary dt { color: var(--muted); }
.brief-summary dd { margin: 0; text-align: right; overflow-wrap: anywhere; }
.contact-footer { display: flex; justify-content: space-between; gap: 24px; padding: 32px var(--gutter); border-top: 1px solid var(--line); font: 11px/1.6 monospace; letter-spacing: .08em; }
.contact-footer a { text-decoration: none; }
html[lang^='zh'] .brief-hero h1 { font-size: clamp(54px, 7vw, 116px); letter-spacing: -.04em; line-height: 1.15; }
html[lang^='zh'] .brief-hero h1 em { font-style: normal; letter-spacing: -.045em; }

/* 06 手机自然排版，完整表单优先；暂停和减少动效不影响输入。 */
@media (max-width: 1000px) {
  .brief-layout { gap: 35px; grid-template-columns: minmax(0, 6fr) minmax(0, 4fr); }
  .brief-hero { gap: 35px; }
  .field-grid { grid-template-columns: 1fr; gap: 25px; }
  .draft-top { flex-wrap: wrap; gap: 0; }
  .draft-top .text-button { min-height: 32px; }
  .brief-step { padding-left: 18px; }
}
@media (max-width: 760px) {
  .contact-nav { padding-top: 22px; padding-bottom: 22px; min-height: 92px; gap: 10px; }
  .wordmark { font-size: 18px; }
  .back-link { font-size: 0; gap: 0; }
  .back-link > span:first-child { font-size: 26px; }
  .language-toggle { top: 24px; right: 18px; padding: 9px 12px; }
  .brief-hero { grid-template-columns: 1fr; padding-top: 32px; padding-bottom: 55px; gap: 30px; }
  .brief-hero h1 { font-size: clamp(52px, 10.4vw, 80px); }
  .brief-hero .eyebrow { font-size: 9px; margin-bottom: 25px; }
  .hero-intro { max-width: 36ch; font-size: 16px; }
  .brief-layout { grid-template-columns: 1fr; gap: 55px; padding-bottom: 65px; }
  .draft-column { border-top: 1px solid var(--line); }
  .draft-sticky { position: static; padding-top: 30px; }
  .draft-top { flex-wrap: nowrap; }
  .draft-top .text-button { min-height: 44px; }
  .draft-preview strong { font-size: clamp(18px, 4vw, 28px); }
  .draft-preview p { font-size: 10px; }
  .brief-step > legend { font-size: 23px; margin-bottom: 25px; }
  .brief-step { margin-bottom: 45px; padding-left: 16px; }
  .required-note { margin-bottom: 30px; }
  .chip { padding: 10px 13px; font-size: 12px; }
  .field-meta { flex-wrap: wrap; gap: 5px; }
  #message-count { margin-left: auto; }
  .contact-footer { flex-wrap: wrap; font-size: 10px; }
  html[lang^='zh'] .brief-hero h1 { font-size: clamp(43px, 9.5vw, 70px); }
}
@media (max-width: 360px) {
  .contact-nav { padding-right: 105px; }
  .wordmark { font-size: 16px; }
  .brief-hero h1 { font-size: 48px; }
  .chips { gap: 7px; }
  .chip { font-size: 11px; padding-inline: 11px; }
  .submit-row { align-items: start; flex-direction: column; }
  .submit-row > p { flex: auto; max-width: 35ch; }
  .draft-top h2 { font-size: 30px; }
}
.contact-motion-paused *, .contact-motion-paused *::before, .contact-motion-paused *::after { transition: none !important; animation: none !important; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}