/* Taier Cloud: brand-led mobile identity. VI reference: pp. 8–16, 18–24. */
:root {
  --brand-blue:#002e63; --brand-cyan:#00bdff; --brand-orange:#fb671c;
  --deep:var(--brand-blue); --green:var(--brand-blue); --gold:var(--brand-blue);
  --paper:#f4f6f8; --ink:#20242a; --muted:#565d66; --line:#dce1e6; --mist:#e9edf1;
  font-family:Helvetica,Arial,"PingFang SC","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  background:#e9edf1; color:var(--ink); font-size:16px; line-height:1.6;
}
button,input,textarea,select {font-family:inherit}
#phone-app {background:var(--paper);box-shadow:none}
#app-main {padding-bottom:calc(104px + var(--safe))}
.app-header {height:88px;padding:0 24px;background:var(--paper);color:var(--brand-blue);position:relative;gap:16px}
.header-brand {min-height:44px;flex-shrink:0}
.header-brand img {width:128px;height:auto;filter:none;opacity:1}
.header-subtitle {display:none}
.header-actions {gap:8px}
.app-header .header-actions>.icon-button {width:44px;height:44px;min-width:44px;border-radius:50%;font-size:12px}
.header-actions>button:last-child {background:white;border:1px solid var(--line)}
.app-header svg {width:20px;height:20px;stroke-width:1.6}

.tc-card {position:relative;margin:0 16px;padding:32px 24px 24px;background:var(--brand-blue);color:white;border-radius:24px;overflow:hidden}
.tc-identity {display:grid;grid-template-columns:minmax(0,1fr) 80px;grid-template-areas:"name avatar" "role role";column-gap:16px;row-gap:24px;align-items:center}
.tc-avatar {grid-area:avatar;position:relative;width:80px;height:96px;margin:0;overflow:hidden;border-radius:12px;background:#edf0f3}
.tc-avatar img {display:block;width:100%;height:100%;object-fit:cover;object-position:50% 12%;transform:scale(1.4);transform-origin:50% 0%}
.tc-name {grid-area:name;min-width:0}
.tc-name h1 {font-size:34px;font-weight:500;line-height:1.2;letter-spacing:0}
.tc-name-en {margin-top:8px;font-size:22px;line-height:1.4;letter-spacing:-.15px;color:white;font-weight:400}
.tc-role {grid-area:role;margin:0;padding-left:16px;border-left:2px solid var(--brand-cyan)}
.tc-role strong {display:block;font-size:16px;line-height:1.6;font-weight:500}
.tc-role span {display:block;margin-top:4px;font-size:15px;line-height:1.5;color:white}
.tc-wechat {display:flex;align-items:center;gap:12px;min-height:64px;width:100%;margin-top:32px;padding:12px 16px;background:white;color:var(--brand-blue);border-radius:12px;text-align:left}
.tc-wechat>svg:first-child {width:24px;height:24px}
.tc-wechat>svg:last-child {width:20px;height:20px;margin-left:auto}
.tc-wechat strong {display:block;font-size:16px;line-height:1.5;font-weight:500}
.tc-wechat small {display:block;font-size:12px;line-height:1.5}
.tc-quick-actions {display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:12px 16px 0}
.tc-quick-actions button {display:flex;align-items:center;justify-content:center;gap:8px;min-height:64px;border:1px solid var(--line);border-radius:12px;padding:8px;background:white;color:var(--brand-blue);text-align:left}
.tc-quick-actions svg {width:20px;height:20px}
.tc-quick-actions strong {display:block;font-size:15px;line-height:1.5;font-weight:500}
.tc-quick-actions small {display:block;font-size:12px;line-height:1.5;color:var(--muted)}

.tc-contact-group {margin:16px 24px 0}
.tc-contact-row {display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;min-height:80px;padding:16px 0;text-align:left;border-bottom:1px solid var(--line)}
.tc-contact-row>span {min-width:0}
.contact-caption {display:block;color:var(--muted);font-size:12px;line-height:1.5;margin-bottom:4px}
.contact-caption small {font-size:12px;margin-left:8px}
.tc-contact-row .contact-value {display:block;color:var(--brand-blue);font-size:17px;line-height:1.5;letter-spacing:0;overflow-wrap:anywhere}
.tc-contact-row>svg {width:20px;height:20px;color:var(--brand-blue)}
.tc-card-tools {display:flex;align-items:center;justify-content:space-between;gap:16px;margin:8px 24px 24px}
.tc-card-tools button {display:flex;align-items:center;gap:8px;min-height:44px;font-size:13px;color:var(--muted);padding:8px 0}
.tc-card-tools svg {width:16px;height:16px}
.tc-card-tools .saved {color:var(--brand-blue)}

.tc-company-section {padding:0 16px 32px}
.tc-section-caption {display:flex;align-items:baseline;gap:8px;margin:0 8px 16px;flex-wrap:wrap}
.tc-section-caption h2 {font-size:22px;font-weight:500;line-height:1.4;letter-spacing:-.15px;color:var(--brand-blue)}
.tc-section-caption>span {font-size:13px;line-height:1.5;color:var(--muted)}
.tc-company {position:relative;display:block;padding:24px;min-height:224px;background:white;border-radius:20px;border:1px solid var(--line);overflow:hidden}
.tc-company-flow {position:absolute;width:144px;right:-8px;bottom:-12px;pointer-events:none}
.tc-company-copy {position:relative;z-index:1}
.tc-company .section-label {font-size:10px;line-height:1.5;letter-spacing:.06em;color:var(--muted);margin-bottom:16px}
.tc-company h3 {font-size:28px;line-height:1.3;letter-spacing:-.2px;font-weight:500;color:var(--brand-blue)}
.tc-company h3>span {display:block;font-size:16px;line-height:1.5;letter-spacing:0;margin-top:8px;font-weight:400}
.tc-company-copy>p {max-width:112px;font-size:15px;line-height:1.6;color:var(--muted);margin-top:24px}
.tc-company-copy>p span {display:block;font-size:15px;line-height:1.5;margin-top:4px}
.tc-company>svg {position:absolute;width:20px;height:20px;top:24px;right:24px;color:var(--brand-blue)}
.tc-about {padding:0 24px 32px}
.tc-about .tc-section-caption {margin-left:0;margin-right:0}
.tc-about>p {font-size:16px;line-height:1.6;color:var(--ink);margin-top:16px}
.tc-about>p.bio-en {font-size:15px;line-height:1.5;color:var(--muted);margin-top:16px}
.tc-team-link {display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding-top:16px;margin-top:24px;border-top:1px solid var(--line);color:var(--brand-blue);font-size:15px;line-height:1.5}
.tc-team-link small {display:block;font-size:12px;line-height:1.5;color:var(--muted);margin-top:4px}
.tc-team-link svg {width:20px;height:20px}
.tc-products {margin:0 16px;background:white;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.tc-product {display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:88px;padding:16px 24px;text-align:left;width:100%}
.tc-product+.tc-product {border-top:1px solid var(--line)}
.tc-product strong {display:block;font-size:16px;line-height:1.5;font-weight:500;color:var(--brand-blue)}
.tc-product small {display:block;font-size:13px;line-height:1.5;color:var(--muted);margin-top:4px}
.tc-product svg {width:20px;height:20px;color:var(--brand-blue)}
.page-end {padding:24px}
.page-end p {font-size:11px;line-height:1.5;color:var(--muted);letter-spacing:0}

.app-nav {bottom:calc(8px + var(--safe));width:min(calc(100% - 32px),448px);padding:8px;gap:8px;border:1px solid var(--line);border-radius:20px;background:#fffffff5;box-shadow:0 4px 24px #20242a0a;backdrop-filter:blur(16px)}
.app-nav a {min-height:56px;border-radius:12px;justify-content:center;gap:4px;color:var(--muted);line-height:1.2}
.app-nav a:before {display:none}
.app-nav a>svg {width:20px;height:20px;stroke-width:1.6}
.app-nav a>span {font-size:11px;font-weight:500}
.app-nav a>small {font-size:9px;font-weight:400}
.app-nav a.active {background:var(--brand-blue);color:white}
.app-nav a.active>svg {stroke-width:1.8}

.button {border-radius:12px;min-height:48px}
.button.primary {background:var(--brand-blue);color:white}
.button.secondary {background:#e9edf1;color:var(--brand-blue);border-color:var(--line)}
.page-hero {padding:24px 24px 32px}
.page-hero h1 {font-size:34px;line-height:1.25;letter-spacing:-.2px;color:var(--brand-blue)}
.page-hero.dark {background:var(--brand-blue);color:white}
.page-hero.dark h1 {color:white}
.page-hero.dark p {color:white}
.page-hero>p {font-size:16px;line-height:1.6}
.section-heading h2,.cooperation h2 {font-size:22px;line-height:1.4;letter-spacing:-.15px}
.feature-product {background:var(--brand-blue)}
.pill-link {background:white;color:var(--brand-blue);min-height:44px;display:inline-flex;align-items:center;font-size:12px}
.pill-link.quiet {background:transparent;border:1px solid #ffffff80;color:white}
.filter-row button {min-height:44px}
.filter-row button[aria-pressed=true] {background:var(--brand-blue);color:white;border-color:var(--brand-blue)}
.list-copy h3 {font-size:17px;line-height:1.5;color:var(--brand-blue)}
.list-copy p {font-size:14px;line-height:1.6}
.quiet-section {padding-left:24px;padding-right:24px}
.field input,.field textarea {font-size:16px;border-radius:12px;min-height:48px}

dialog {background:white;border-radius:24px 24px 0 0;box-shadow:0 -8px 40px #002e631a}
dialog::backdrop {background:#20242a80;backdrop-filter:blur(4px)}
.sheet-head {background:white;border:0;padding:24px 24px 16px}
.sheet-head h2 {font-size:22px;font-weight:500;line-height:1.4;color:var(--brand-blue)}
.sheet-head .icon-button {width:44px;height:44px;min-width:44px;border-radius:50%;background:var(--paper)}
.sheet-body {background:white;padding-left:24px;padding-right:24px}
.sheet-body>p {font-size:15px;line-height:1.6;color:var(--muted)}
.sheet-actions .button {min-height:52px}
.share-design-label {font-size:14px!important;line-height:1.6}
.share-message {border:1px solid var(--line);border-radius:16px;overflow:hidden;background:white;margin:16px 0}
.share-message-title {font-size:14px!important;line-height:1.5!important;margin:0!important;padding:16px!important;color:var(--brand-blue)!important}
.share-cover {width:100%;aspect-ratio:5/4;object-fit:contain;display:block;background:var(--paper)}
.share-message-footer {padding:8px 16px;font-size:12px;color:var(--muted);border-top:1px solid var(--line)}
.share-cover-help {font-size:13px!important;line-height:1.6!important;color:var(--muted)!important}
.share-person img {border-radius:8px;width:56px;height:64px;object-fit:cover;object-position:top}
.wechat-value {font-size:26px;color:var(--brand-blue);letter-spacing:0}
.copy-field,.preview-notice {border-radius:12px}
.preview-notice {background:var(--paper);font-size:13px!important;line-height:1.6}
.sheet-announcement {position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.desktop-note {color:var(--brand-blue)}
.desktop-note>img {width:168px;opacity:1;filter:none}
.desktop-note .note-kicker {font-size:11px;letter-spacing:.06em;color:var(--muted);margin-top:32px}
.desktop-title {font-size:52px!important;font-weight:400;line-height:1.1!important;letter-spacing:-.4px;color:var(--brand-blue)!important;margin:24px 0!important}
.desktop-title>span {display:block}
.desktop-note .desktop-zh {font-size:24px;line-height:1.5;color:var(--brand-blue)}
.desktop-note-line {width:64px;height:2px;background:var(--brand-cyan);margin:24px 0}
.desktop-note>p {font-size:16px;line-height:1.6;color:var(--muted)}
.desktop-note .note-small {font-size:14px;line-height:1.6;color:var(--muted)}
@media(min-width:1000px) {
  #phone-app {border-radius:28px;overflow:clip;border:1px solid var(--line);box-shadow:0 12px 48px #002e6308}
  .app-nav {right:calc((100vw - 950px)/2 + 16px);width:448px;bottom:16px;border-radius:20px}
  dialog {border-radius:24px}
}
@media(max-width:360px) {
  .header-brand img {width:120px}
  .tc-identity {grid-template-columns:minmax(0,1fr) 64px;column-gap:16px}
  .tc-avatar {width:64px;height:80px;border-radius:10px}
  .tc-name h1 {font-size:32px}
  .tc-name-en {font-size:20px}
  .tc-company h3 {font-size:26px}
  .tc-card-tools {gap:8px}
  .tc-card-tools button {font-size:12px;gap:8px}
}
@media(hover:hover) {
  button,a {transition:background-color .18s,color .18s,transform .18s}
  .tc-wechat:hover {background:#f4f6f8}
  .tc-quick-actions button:hover {border-color:var(--brand-blue)}
  .tc-company:hover .tc-company-flow {transform:translateX(-4px)}
  .tc-company-flow {transition:transform .22s}
}
@media(prefers-reduced-transparency:reduce) {.app-nav {background:white;backdrop-filter:none}dialog::backdrop {backdrop-filter:none}}
@media(prefers-reduced-motion:reduce) {* {animation:none!important;transition:none!important}}