/* Presentation only. Original login.css, login.js, field IDs and auth flows stay intact. */
:root { --serif: "STFangsong", "FangSong", "Songti SC", serif; --paper-faint: #bab8af; }
body { font-size: 1rem; line-height: 1.75; overflow-x: visible; }
.site-header { width: min(78rem, calc(100% - 3rem)); min-height: 5.5rem; }
.brand { font-size: 1.5rem; letter-spacing: .08em; }
.brand small { font-size: .8125rem; letter-spacing: .16em; }
.brand-seal { width: 2rem; height: 2rem; font-size: 1.0625rem; }
.back-link { min-height: 2.75rem; padding: .6rem 1rem; font-size: .9375rem; }
.login-shell { width: min(72rem, calc(100% - 4rem)); padding-block: 4rem; grid-template-columns: minmax(0, 1fr) minmax(25rem, .95fr); align-items: center; gap: clamp(3rem, 5vw, 5rem); }
.story-kicker, .auth-kicker, .session-kicker { font-size: .8125rem; line-height: 1.6; letter-spacing: .12em; }
.story-panel h2 { font-family: var(--serif); font-size: clamp(2.5rem, 1.7rem + 2vw, 3.6rem); line-height: 1.45; margin: 1.5rem 0; }
.story-copy { font-size: 1.125rem; line-height: 1.9; }
.path-list { display: block; margin-top: 2rem; }
.path-list li, .path-list li + li { display: flex; gap: 1rem; padding: 1.1rem 0; border-left: 0; }
.path-list li + li { border-top: 1px solid var(--line); }
.path-list > li > span { font-size: 1rem; padding-top: .1rem; }
.path-list li > div { display: flex; flex-wrap: wrap; align-items: baseline; gap: .4rem 1.25rem; }
.path-list b { font-size: 1.0625rem; margin: 0; font-weight: 500; }
.path-list small { font-size: .9375rem; color: var(--paper-dim); }
.trust-note { font-size: .875rem; line-height: 1.8; }
.auth-card { padding: 2.25rem; border-radius: 1.5rem; }
.auth-heading h1 { font-family: var(--serif); font-size: 2.625rem; line-height: 1.35; margin: 1rem 0; letter-spacing: .025em; }
.auth-heading p { font-size: 1rem; line-height: 1.85; }
.auth-form { margin-top: 2rem; }
.field { margin-top: 1.5rem; }
.field > label, .agreements legend { font-size: 1rem; line-height: 1.65; margin-bottom: .5rem; color: var(--paper); }
.field > label small { font-size: .875rem; }
.field-hint { font-size: .875rem; line-height: 1.75; margin-top: .5rem; }
.field-control, .code-control { min-height: 3.5rem; border-radius: .75rem; }
.phone-prefix { font-size: 1rem; min-width: 3.4rem; padding-inline: .7rem; }
.field input[type="tel"], .field input[type="text"] { height: 3.5rem; padding-inline: .8rem; font-size: 1rem; }
.send-button { height: auto; min-height: 2.75rem; min-width: 7rem; padding: .5rem .65rem; font-size: .9375rem; line-height: 1.5; flex-shrink: 0; }
.form-message { font-size: .9375rem; min-height: 1.65rem; margin: 1rem 0 .5rem; }
.submit-button, .douyin-button { min-height: 3.5rem; padding: .8rem 1.25rem; font-size: 1rem; line-height: 1.6; }
.login-method-divider { font-size: .875rem; line-height: 1.7; }
.security-note { justify-content: flex-start; font-size: .8125rem; line-height: 1.75; }
.security-note svg { margin-top: .2rem; }
.agreements { min-width: 0; }
.agreements label { font-size: .9375rem; line-height: 1.75; min-height: 2.75rem; align-items: flex-start; }
.agreements input { flex: 0 0 1.25rem; margin-top: .25rem; }
.session-profile-head strong { font-size: 1.25rem; white-space: normal; overflow-wrap: anywhere; }
.session-profile-head small, .session-profile-facts dt, .session-profile-facts dd { font-size: .9375rem; }
.session-profile-facts > div { grid-template-columns: 5rem minmax(0,1fr); gap: 1rem; }
.logout-button { font-size: .9375rem; min-height: 2.75rem; }
.site-footer { font-size: .875rem; line-height: 1.75; gap: 1rem; flex-wrap: wrap; }
.douyin-link-dialog h2 { font-size: 2rem; line-height: 1.5; letter-spacing: .015em; }
.douyin-link-dialog h2 + p, .douyin-link-paths strong { font-size: 1rem; line-height: 1.85; }
.douyin-link-seal, .douyin-link-expiry, .douyin-link-paths p, .douyin-link-actions button { font-size: .9375rem; }
.douyin-link-kicker { font-size: .8125rem; letter-spacing: .12em; }
.douyin-link-actions button { min-height: 3rem; padding: .7rem 1rem; }
.douyin-link-actions { grid-template-columns: 1fr; }
@media (max-width: 1020px) {
  .login-shell { width: min(42rem, calc(100% - 3rem)); grid-template-columns: minmax(0,1fr); padding-top: 2.5rem; gap: 2.5rem; }
  .auth-panel { order: -1; }
  .story-panel h2 { font-size: clamp(2.3rem, 1.5rem + 3vw, 3.6rem); }
  .story-copy { font-size: 1.0625rem; }
}
@media (max-width: 600px) {
  .site-header, .site-footer { width: calc(100% - 2.5rem); }
  .site-header { gap: 1rem; flex-wrap: wrap; padding-block: .75rem; }
  .brand { font-size: 1.25rem; gap: .5rem; }
  .back-link { font-size: .875rem; padding-inline: .75rem; }
  .login-shell { width: calc(100% - 2rem); padding-top: 2rem; gap: 2rem; }
  .story-panel { padding-inline: .25rem; }
  .path-list { display: block; }
  .path-list li, .path-list li + li { display: flex; padding: 1rem 0; border-left: 0; }
  .path-list li + li { border-top: 1px solid var(--line); }
  .path-list li > span { margin: 0; }
  .path-list li > div { display: block; }
  .path-list small { margin-top: .25rem; }
  .auth-card { padding: 1.5rem 1.25rem; border-radius: 1.25rem; }
  .auth-heading h1 { font-size: 2.25rem; }
  .code-control { flex-wrap: wrap; }
  .code-control input { flex: 1 1 6rem; width: 0; }
  .send-button { min-width: 6.4rem; }
  .site-footer { padding-block: 1.5rem; }
  .douyin-link-paths { grid-template-columns: 1fr; }
  .douyin-link-paths > div + div { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 380px) {
  .site-header { flex-wrap: wrap; gap: .5rem; padding-block: .75rem; }
  .code-control input { width: 100%; flex-basis: 100%; }
  .send-button { width: calc(100% - 1rem); margin: 0 .5rem .5rem; border: 1px solid var(--line); border-radius: .5rem; }
}