:root {
  color-scheme: light;
  --paper: #f8f7f3;
  --ink: #203536;
  --muted: #637775;
  --teal: #164c50;
  --line: #dce3de;
  --focus: #0b737b;
}
* { box-sizing: border-box; }
html { min-height: 100%; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", "微软雅黑", sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: wait; }
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}
::selection { color: #0d3b3f; background: #c6ded6; }
.login-shell { display: grid; grid-template-columns: minmax(420px, 1fr) minmax(460px, 1fr); min-height: 100svh; }
.brand-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  padding: 52px clamp(38px, 5.5vw, 90px) 35px;
  color: #edf4ee;
  background: #164c50;
}
.brand-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at 90% 65%, rgba(113, 151, 135, .19), transparent 65%);
}
.brand-lockup, .brand-message, .brand-footnote { position: relative; }
.brand-lockup { display: flex; align-items: center; gap: 16px; }
.brand-symbol {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid #759795;
  border-radius: 12px;
}
.brand-symbol svg { width: 31px; height: 31px; }
.brand-name { margin: 0 0 5px; font-size: 21px; font-weight: 600; letter-spacing: .055em; }
.brand-english { margin: 0; color: #b5ceca; font-size: 10px; font-weight: 500; letter-spacing: .2em; }
.brand-message { width: 100%; max-width: 560px; margin: auto 0; padding: 66px 0 16px; }
.eyebrow { margin: 0 0 22px; color: #b9d2cc; font-size: 12px; letter-spacing: .12em; line-height: 1.8; }
.brand-message h1 { margin: 0 0 21px; font-size: clamp(32px, 3vw, 47px); font-weight: 500; line-height: 1.5; letter-spacing: -.018em; }
.brand-message h1 span { color: #d4e0c9; }
.brand-description { margin: 0; color: #c0d4ce; font-size: 14px; line-height: 1.95; letter-spacing: .02em; }
.atlas-illustration { position: relative; width: 300px; height: 260px; margin: 30px 0 5px; }
.atlas-ring, .atlas-axis { position: absolute; top: 50%; left: 50%; }
.atlas-ring { transform: translate(-50%, -50%); border: 1px solid rgba(174, 203, 187, .2); border-radius: 50%; }
.ring-one { width: 100px; height: 100px; }
.ring-two { width: 178px; height: 178px; }
.ring-three { width: 252px; height: 252px; }
.atlas-axis { width: 280px; height: 1px; background: rgba(174, 203, 187, .14); transform: translate(-50%, -50%) rotate(-30deg); }
.axis-two { transform: translate(-50%, -50%) rotate(60deg); }
.atlas-center { position: absolute; inset: calc(50% - 26px) auto auto calc(50% - 26px); display: grid; place-items: center; width: 52px; height: 52px; color: #b6cdaf; border: 1px solid rgba(185, 210, 204, .38); border-radius: 50%; background: #24575a; }
.atlas-center svg { width: 25px; height: 25px; }
.atlas-node { position: absolute; padding: 8px 16px; color: #d5e4d9; font-size: 11px; letter-spacing: .1em; border: 1px solid #608681; border-radius: 6px; background: #1c5154; box-shadow: 0 5px 14px rgba(0, 0, 0, .03); }
.node-policy { top: 26px; left: 149px; }
.node-price { top: 138px; left: 10px; }
.node-evidence { bottom: 26px; right: 11px; }
.atlas-dot { position: absolute; width: 6px; height: 6px; border-radius: 50%; background: #a7c2ab; }
.dot-one { top: 87px; left: 108px; }
.dot-two { bottom: 70px; right: 73px; }
.brand-footnote { display: flex; align-items: center; gap: 9px; margin: 24px 0 0; color: #b1cbc4; font-size: 11px; letter-spacing: .06em; }
.brand-footnote span { width: 5px; height: 5px; border-radius: 50%; background: #c0d4b6; }
.signin-panel { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; min-width: 0; padding: 64px 48px 85px; }
.signin-card { width: 100%; max-width: 380px; }
.signin-badge { display: inline-block; margin-bottom: 17px; padding: 4px 9px; color: var(--teal); background: #e9efe8; border: 1px solid #d4dfd4; border-radius: 4px; font-size: 11px; letter-spacing: .08em; line-height: 1.5; }
.signin-heading h2 { margin: 0 0 12px; font-size: 31px; font-weight: 600; line-height: 1.45; letter-spacing: -.02em; }
.signin-heading p { margin: 0 0 35px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.internal-notice { margin: -14px 0 25px; font-size: 12px; line-height: 1.8; }
.internal-purpose { margin: 0 0 10px; color: var(--muted); }
.notice-configuration { margin: 0 0 12px; padding: 9px 11px; color: #74551f; border: 1px solid #e3d6b9; border-radius: 5px; background: #fbf7ed; font-size: 11px; }
.internal-notice details { border-top: 1px solid var(--line); }
.internal-notice details:last-child { border-bottom: 1px solid var(--line); }
.internal-notice summary { padding: 8px 0; color: var(--teal); cursor: pointer; font-weight: 600; }
.internal-notice summary:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.notice-body { padding: 0 2px 12px; color: var(--muted); overflow-wrap: anywhere; }
.notice-body a { color: var(--teal); text-underline-offset: 3px; }
.notice-body p { margin: 0 0 11px; }
.notice-body p:last-child { margin-bottom: 0; }
.notice-version { font-size: 10px; color: #71877e; }
.notice-operator { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 5px 10px; margin: 0 0 12px; }
.notice-operator dt { font-weight: 600; color: var(--ink); }
.notice-operator dd { margin: 0; }
.notice-body ul { margin: 0; padding-left: 19px; }
.notice-body li { margin-bottom: 7px; }
.notice-body li:last-child { margin-bottom: 0; }
.field-group { margin-bottom: 23px; }
.field-group label { display: block; margin-bottom: 10px; font-size: 13px; font-weight: 500; }
.input-wrap { position: relative; }
.input-wrap input { display: block; width: 100%; height: 52px; padding: 0 48px 0 43px; color: var(--ink); border: 1px solid #cdd8d1; border-radius: 7px; outline: 0; background: #fff; font-size: 14px; transition: border-color .15s ease, box-shadow .15s ease; }
.input-wrap input::placeholder { color: #87978f; font-size: 13px; }
.input-wrap input:hover { border-color: #a8bbb2; }
.input-wrap input:focus { border-color: var(--focus); box-shadow: 0 0 0 3px rgba(11, 115, 123, .12); }
.input-wrap input[readonly] { background: #f5f6f3; }
.field-icon { position: absolute; top: 17px; left: 15px; width: 18px; height: 18px; color: #748e86; pointer-events: none; }
.password-toggle { position: absolute; inset: 6px 7px 6px auto; display: grid; place-items: center; width: 38px; padding: 0; color: #71877e; border: 0; border-radius: 4px; background: transparent; }
.password-toggle:hover { color: var(--teal); background: #edf2ed; }
.password-toggle svg { width: 19px; height: 19px; }
.eye-slash { display: none; }
.password-toggle[aria-pressed="true"] .eye-slash { display: block; }
.login-status { min-height: 24px; margin: -8px 0 14px; color: #9b3c35; font-size: 12px; line-height: 1.8; }
.login-status:empty { min-height: 6px; margin-bottom: 14px; }
.login-status[data-state="pending"] { color: var(--muted); }
.login-submit { display: flex; align-items: center; justify-content: center; gap: 12px; width: 100%; height: 52px; padding: 0 18px; color: #fff; border: 1px solid var(--teal); border-radius: 7px; background: var(--teal); font-size: 14px; font-weight: 500; letter-spacing: .04em; box-shadow: 0 3px 7px rgba(22, 76, 80, .08); transition: background .16s ease, box-shadow .16s ease; }
.login-submit:hover:not(:disabled) { background: #0d3b3f; box-shadow: 0 4px 10px rgba(22, 76, 80, .14); }
.login-submit:disabled { background: #41686a; border-color: #41686a; }
.button-arrow { width: 18px; height: 18px; }
.button-spinner { display: none; width: 16px; height: 16px; border: 2px solid rgba(255, 255, 255, .35); border-top-color: white; border-radius: 50%; animation: button-spin .8s linear infinite; }
form[aria-busy="true"] .button-spinner { display: block; }
form[aria-busy="true"] .button-arrow { display: none; }
.signin-note { display: flex; gap: 11px; align-items: flex-start; margin-top: 30px; padding-top: 25px; border-top: 1px solid var(--line); color: var(--muted); }
.signin-note svg { flex: 0 0 auto; width: 18px; height: 18px; margin-top: 3px; color: #6f897e; }
.signin-note p { margin: 0; font-size: 11px; line-height: 1.95; }
.login-actions { display: flex; justify-content: flex-end; margin-top: 17px; }
.login-actions a { color: var(--teal); font-size: 12px; line-height: 1.8; text-underline-offset: 4px; }
.login-actions a:hover { color: var(--focus); }
.login-actions a:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; border-radius: 2px; }
.signin-footer { position: absolute; bottom: 28px; margin: 0; color: #87978f; font-size: 10px; line-height: 1.8; letter-spacing: .035em; text-align: center; }
.signin-footer a { display: block; color: inherit; text-underline-offset: 3px; }
.signin-footer a:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.noscript-message { color: #9b3c35; font-size: 12px; line-height: 1.8; }
@keyframes button-spin { to { transform: rotate(360deg); } }
@media (min-width: 1600px) { .brand-message { padding-top: 60px; } .atlas-illustration { margin-top: 36px; } }
@media (max-height: 780px) and (min-width: 721px) {
  .brand-panel { padding-top: 36px; padding-bottom: 26px; }
  .brand-message { padding-top: 44px; }
  .atlas-illustration { margin-top: 20px; margin-bottom: -20px; transform: scale(.86); transform-origin: left top; }
}
@media (max-width: 1000px) {
  .login-shell { grid-template-columns: minmax(330px, 1fr) minmax(380px, 1fr); }
  .brand-panel { padding: 38px 34px 28px; }
  .brand-name { font-size: 18px; }
  .brand-message h1 { font-size: 32px; }
  .signin-panel { padding: 55px 34px 75px; }
}
@media (max-width: 720px) {
  .login-shell { display: block; }
  .brand-panel { padding: 26px 26px 32px; }
  .brand-symbol { width: 40px; height: 40px; border-radius: 10px; }
  .brand-symbol svg { width: 27px; height: 27px; }
  .brand-name { font-size: 18px; }
  .brand-english { font-size: 9px; }
  .brand-lockup { gap: 12px; }
  .brand-message { padding: 30px 0 0; }
  .eyebrow, .brand-description, .atlas-illustration, .brand-footnote { display: none; }
  .brand-message h1 { margin: 0; font-size: 25px; line-height: 1.6; }
  .brand-message h1 br { display: none; }
  .brand-message h1 span { margin-left: 4px; }
  .signin-panel { min-height: calc(100svh - 186px); padding: 35px 26px 68px; }
  .signin-card { max-width: 400px; }
  .signin-badge { margin-bottom: 13px; }
  .signin-heading h2 { font-size: 27px; margin-bottom: 8px; }
  .signin-heading p { margin-bottom: 27px; }
  .field-group { margin-bottom: 21px; }
  .signin-note { margin-top: 24px; padding-top: 20px; }
  .signin-footer { bottom: 22px; }
}
@media (max-width: 380px) { .brand-message h1 { font-size: 22px; } .brand-panel { padding-inline: 22px; } .signin-panel { padding-inline: 22px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 2s !important; transition-duration: 0s !important; } }