/* Login-only master composition. Authentication widgets and Phase 8 tokens are unchanged. */
:root { color-scheme: light; }
* { box-sizing: border-box; }
body { margin: 0; }
.login-page { min-height: 100vh; min-height: 100svh; position: relative; isolation: isolate; color: var(--duxin-ink); background: var(--duxin-paper); font: 16px/1.6 "Microsoft YaHei", "PingFang SC", sans-serif; }
/* Width-led full painting, never cover-cropped: extra vertical room is paper sky. */
.login-scene { position: absolute; inset: 0; z-index: -2; display: flex; align-items: flex-end; pointer-events: none; }
.login-scene img { display: block; width: 100%; height: auto; flex: none; mask-image: linear-gradient(transparent, transparent 25%, #000 45%); }
.login-scene::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to right, transparent 70%, rgb(247 243 237 / 12%) 88%); mask-image: linear-gradient(transparent 25%, #000 50%); pointer-events: none; }
.login-page::before { content: ""; position: absolute; inset: 0 0 auto; height: min(28vw, 460px); z-index: -1; background: url("decorative/login-landscape-master.png") center top / 100vw auto no-repeat; mask-image: linear-gradient(#000 20%, transparent 100%); pointer-events: none; }
.login-layout { width: min(1440px, 80%); margin: 0 auto; padding: clamp(72px, 13vh, 150px) 0 40px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(60px, 5vw, 96px); align-items: start; }
.login-brand { width: min(520px, 100%); min-width: 0; justify-self: end; padding-top: 4px; }
.login-brand-heading { text-align: center; }
.login-brand-signature { display: flex; align-items: center; justify-content: center; gap: 18.6px; }
.login-brand-signature > div { min-width: 0; }
.login-brand-seal { display: block; width: 40px; height: auto; flex: none; }
.login-wordmark { display: block; width: 229px; max-width: 100%; height: auto; object-fit: contain; }
.login-brand-english { margin: 7px 0 0; font: 600 10.2px/1.5 Georgia, "Times New Roman", serif; letter-spacing: 5.6px; }
.login-brand-caption { margin: 22px 0 0; color: var(--duxin-muted-ink); font: 17px/1.6 "Songti SC", "SimSun", serif; letter-spacing: 3px; white-space: nowrap; }
.login-brand-message { padding: 52px 0 0 58px; }
.login-motto { margin: 0; font: 700 clamp(62px, 5.1vw, 86px)/1.25 "KaiTi", "STKaiti", "Songti SC", "SimSun", serif; letter-spacing: .08em; color: var(--duxin-ink); }
.login-motto span { display: flex; align-items: center; white-space: nowrap; }
.login-motto span + span { padding-left: .8em; }
.login-motto-seal { display: block; width: 21px; height: auto; object-fit: contain; flex: none; margin-left: 16px; }
.login-brand-note { display: flex; align-items: center; justify-content: center; gap: 14px; margin: 24px 0 0; color: var(--duxin-muted-ink); font: 16px/1.8 "Songti SC", "SimSun", serif; letter-spacing: 2px; white-space: nowrap; }
.login-brand-note::before, .login-brand-note::after { content: ""; width: 30px; height: 1px; background: var(--duxin-tea-brown); opacity: .45; flex: none; }
.login-card { width: 95%; justify-self: center; min-width: 0; position: relative; isolation: isolate; padding: 46px 40px 14px; border: 1px solid rgb(118 82 56 / 13%); border-radius: var(--duxin-radius-medium); background: linear-gradient(rgb(255 252 247 / 91%), rgb(255 252 247 / 94%)), url("decorative/login-landscape-master.png") center top / 1440px auto no-repeat; box-shadow: 0 5px 20px rgb(63 46 33 / 4%); }
.login-card::before { content: ""; position: absolute; inset: 11px; border: 1px solid rgb(118 82 56 / 17%); pointer-events: none; }
.login-card::after { content: ""; position: absolute; inset: auto 12px 12px; height: 110px; background: url("decorative/login-cloud-lines.svg") center bottom / 100% auto no-repeat; opacity: .12; z-index: -1; pointer-events: none; }
.login-corners { position: absolute; inset: 11px; pointer-events: none; color: var(--duxin-tea-brown); opacity: .3; }
.login-corners i { position: absolute; width: 14px; height: 14px; border: 1px solid currentColor; }
.login-corners i::before, .login-corners i::after { content: ""; position: absolute; width: 7px; height: 7px; border: 1px solid currentColor; }
.login-corners i:nth-child(1) { top: 0; left: 0; }
.login-corners i:nth-child(2) { top: 0; right: 0; }
.login-corners i:nth-child(3) { bottom: 0; left: 0; }
.login-corners i:nth-child(4) { bottom: 0; right: 0; }
.login-corners i::before { top: 2px; left: 2px; }
.login-corners i::after { bottom: 2px; right: 2px; }
.login-card-heading { text-align: center; }
.login-card h1 { margin: 0; font: 700 32px/1.5 "Songti SC", "SimSun", serif; letter-spacing: 1px; white-space: nowrap; }
.subtitle, .login-restriction { display: flex; align-items: center; justify-content: center; gap: 14px; color: var(--duxin-muted-ink); }
.subtitle { margin: 14px 0 0; font: 17px/1.8 "Songti SC", "SimSun", serif; letter-spacing: 2px; }
.subtitle::before, .subtitle::after, .login-restriction::before, .login-restriction::after { content: ""; width: 28px; height: 1px; background: var(--duxin-border); flex: none; }
.login-form { display: grid; gap: 20px; margin-top: 30px; }
.login-field { display: grid; min-width: 0; gap: 8px; }
.login-field label { font-size: 15px; font-weight: 600; }
.login-input-wrap { position: relative; min-width: 0; }
.duxin-icon { width: 22px; height: 22px; display: block; flex: none; }
.login-input-wrap > .duxin-icon { position: absolute; top: 16px; left: 16px; color: var(--duxin-tea-brown); pointer-events: none; }
.login-form input:not([type="hidden"]) { display: block; width: 100%; min-width: 0; height: 54px; border: 1px solid var(--duxin-border); border-radius: 8px; padding: 12px 16px 12px 49px; background: var(--duxin-card); color: var(--duxin-ink); font: inherit; caret-color: var(--duxin-deep-cinnabar); appearance: none; }
.login-form input:focus { border-color: var(--duxin-tea-brown); outline: 3px solid rgb(118 82 56 / 12%); outline-offset: 1px; }
.login-form input[aria-invalid="true"] { border-color: var(--duxin-danger); }
.login-form input:-webkit-autofill { -webkit-text-fill-color: var(--duxin-ink); box-shadow: 0 0 0 1000px var(--duxin-card) inset; }
.login-form button { display: flex; align-items: center; justify-content: center; gap: 20px; width: 100%; min-height: 58px; margin-top: 6px; padding: 14px 20px; border: 1px solid var(--duxin-deep-cinnabar); border-radius: 8px; background: url("decorative/login-cloud-lines.svg") right bottom / auto 76px no-repeat, linear-gradient(110deg, var(--duxin-danger), var(--duxin-deep-cinnabar)); color: var(--duxin-card); font: 500 21px/1.4 "Songti SC", "SimSun", serif; letter-spacing: 3px; cursor: pointer; box-shadow: 0 5px 14px rgb(136 46 46 / 12%); }
.login-form button:hover { border-color: var(--duxin-danger); }
.login-form button:focus-visible { outline: 3px solid var(--duxin-tea-brown); outline-offset: 4px; }
.login-form button:active { box-shadow: none; }
.login-restriction { margin: 27px 0 0; font: 13px/1.7 "Songti SC", "SimSun", serif; letter-spacing: 1px; }
/* The horizontal watermark is below the footer, never behind a title or control. */
.login-card-watermark { margin-top: 19px; display: flex; align-items: center; justify-content: center; gap: 20px; opacity: .03; pointer-events: none; }
.login-watermark-seal { width: 43px; height: auto; flex: none; }
.login-card-watermark > div { width: min(310px, calc(100% - 63px)); }
.login-watermark-wordmark { display: block; width: 100%; height: auto; object-fit: contain; }
.login-card-watermark span { display: block; margin-top: 8px; text-align: center; font: 11px/1.5 Georgia, "Times New Roman", serif; letter-spacing: 5px; white-space: nowrap; }
.error-message { margin: 20px 0 0; padding: 12px 14px; border: 1px solid rgb(161 59 53 / 25%); border-left: 3px solid var(--duxin-danger); border-radius: var(--duxin-radius-small); background: rgb(161 59 53 / 5%); color: var(--duxin-danger); font-size: 14px; overflow-wrap: anywhere; }
@media (min-width: 1680px) {
    .login-brand { width: min(560px, 100%); }
    .login-brand-signature { gap: 22.3px; }
    .login-brand-seal { width: 47.4px; }
    .login-wordmark { width: 265px; }
    .login-brand-caption { font-size: 19px; margin-top: 24px; }
    .login-brand-message { padding-top: 66px; }
    .login-brand-note { font-size: 18px; margin-top: 30px; }
    .login-card { padding: 60px 50px 12px; }
    .login-card h1 { font-size: 36px; }
    .subtitle { font-size: 19px; }
    .login-form { margin-top: 34px; gap: 24px; }
    .login-form input:not([type="hidden"]) { height: 60px; }
    .login-input-wrap > .duxin-icon { top: 19px; }
    .login-form button { min-height: 64px; }
    .login-card-watermark { margin-top: 22px; }
    .login-card-watermark > div { width: min(340px, calc(100% - 63px)); }
}
@media (max-width: 1390px) {
    .login-layout { width: 82%; gap: 54px; padding-top: 8vh; }
    .login-brand { width: min(490px, 100%); }
    .login-wordmark { width: 214px; }
    .login-brand-seal { width: 36.3px; }
    .login-brand-caption { font-size: 15px; letter-spacing: 2px; margin-top: 18px; }
    .login-brand-message { padding-top: 46px; }
    .login-motto { font-size: 66px; }
    .login-brand-note { font-size: 14px; letter-spacing: 1px; gap: 10px; margin-top: 20px; }
    .login-card { padding: 32px 36px 10px; }
    .login-card h1 { font-size: 29px; }
    .subtitle { font-size: 16px; margin-top: 12px; }
    .login-form { margin-top: 26px; gap: 18px; }
    .login-card:has(.error-message) { padding-top: 28px; padding-bottom: 10px; }
    .login-card-watermark { margin-top: 13px; }
    .login-card-watermark > div { width: min(290px, calc(100% - 63px)); }
}
@media (max-width: 1100px) {
    .login-layout { width: calc(100% - 64px); gap: 36px; }
    .login-motto { font-size: 54px; }
    .login-brand-caption { font-size: 13px; }
    .login-card { padding-inline: 30px; }
    .login-card h1 { font-size: 25px; }
    .login-brand-note { font-size: 12px; }
    .login-brand-note::before, .login-brand-note::after { width: 18px; }
}
@media (max-width: 800px) {
    .login-layout { width: min(480px, calc(100% - 32px)); grid-template-columns: 1fr; gap: 28px; padding: 32px 0; }
    .login-brand { justify-self: center; }
    .login-wordmark { width: 196px; }
    .login-brand-seal { width: 33px; }
    .login-brand-caption { margin-top: 12px; }
    .login-brand-message { width: max-content; max-width: 100%; margin: 0 auto; padding: 20px 0 0; }
    .login-motto { font-size: 42px; }
    .login-brand-note { display: none; }
    .login-card { width: 100%; padding: 40px 28px 20px; }
    .login-card h1 { font-size: 26px; }
    .subtitle { font-size: 15px; }
    .login-restriction { gap: 8px; font-size: 12px; }
    .login-card-watermark { inset-inline: 10%; }
}
@media (max-width: 380px) {
    .login-card { padding-inline: 22px; }
    .login-card h1 { font-size: 22px; }
    .subtitle { font-size: 13px; gap: 8px; }
    .login-restriction { font-size: 11px; letter-spacing: 0; }
}