:root { color-scheme: light; font-family: "Microsoft YaHei", sans-serif; color: #20373a; background: #e9f0ed; }
* { box-sizing: border-box; }
body { margin: 0; background: #e9f0ed; }
header.b35-brand { padding: 17px 5vw; background: #1a4a4d; color: #f3e7c8; font: 700 22px/1.4 Georgia,serif; }
.b35-brand a { color: inherit; text-decoration: none; }
nav.b35-navigation { display: flex; flex-wrap: wrap; gap: 8px 15px; padding: 12px 5vw; background: #d4e3dc; border-bottom: 1px solid #a9c1b5; }
.b35-navigation a { color: #235e5b; text-decoration: none; font-size: 13px; }
main { max-width: 1320px; margin: auto; padding: 30px 5vw 70px; }
main > h1 { margin: 0 0 20px; color: #204c4b; font: 500 clamp(27px,4vw,46px)/1.2 Georgia,serif; }
.p12-intro { position: relative; display: grid; grid-template-columns: minmax(0,1fr) 235px; gap: 28px; padding: 30px 32px; border-radius: 28px 4px 28px 4px; background: #fbf8ee; box-shadow: 0 14px 34px #37645b17; }
.p12-intro header > p { margin: 0 0 9px; color: #b45f39; font-size: 13px; }
.p12-intro h2 { margin: 0 0 14px; color: #246563; font: 24px Georgia,serif; }
.p12-intro header > div { line-height: 2; }
.p12-image-bank { display: grid; grid-template-columns: repeat(2,1fr); gap: 8px; list-style: none; padding: 0; margin: 0; }
.p12-image-bank li { display: grid; justify-items: center; padding: 8px; background: #e5ece1; border-radius: 10px; color: #708c80; font-size: 9px; }
.p12-image-bank img { width: 40px; height: 40px; object-fit: contain; }
.p12-atlas { display: grid; grid-template-columns: 110px minmax(0,1fr); gap: 24px; margin-top: 35px; }
.p12-atlas aside { display: flex; flex-direction: column; align-items: center; gap: 18px; padding-top: 14px; color: #55746f; }
.p12-atlas aside b { color: #b45f39; writing-mode: vertical-rl; font: 18px Georgia,serif; }
.p12-atlas aside span { padding: 8px 0; border-top: 1px solid #adc3b7; writing-mode: vertical-rl; font-size: 12px; letter-spacing: .14em; }
.p12-contours { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 17px; align-items: start; }
.p12-orbit { min-width: 0; padding: 22px; background: #fbf8ee; border: 1px solid #d5e1d8; border-radius: 4px 22px 4px 22px; }
.p12-orbit h2 { margin: 0 0 16px; color: #256463; font: 22px Georgia,serif; }
.p12-tile { padding: 18px; background: #edf2e9; border-radius: 14px 2px; line-height: 1.9; }
.p12-tile h3 { margin: 0 0 9px; color: #a75536; font-size: 17px; }
.p12-tile p { margin: 0; }
.p12-voices { display: grid; gap: 12px; }
.p12-voice { margin: 0; padding: 17px; background: #edf2e9; border-left: 3px solid #b45f39; line-height: 1.85; }
.p12-voice h3 { margin: 0 0 7px; color: #2c6b63; font-size: 16px; }
.p12-voice p { margin: 0; }
.p12-voice cite { display: block; margin-top: 8px; color: #8a7656; font-style: normal; font-size: 12px; }
.p12-story-stack { display: grid; gap: 12px; }
.p12-story { display: grid; grid-template-columns: 46px minmax(0,1fr); gap: 8px 12px; padding: 14px 0; border-bottom: 1px solid #d5e1d8; }
.p12-story img { grid-row: span 3; width: 42px; height: 42px; object-fit: contain; }
.p12-story time { color: #82968b; font-size: 11px; }
.p12-story h3 { margin: 0; color: #a75536; font-size: 17px; }
.p12-story p { grid-column: 2; margin: 0; line-height: 1.9; }
.p12-faq-stack { display: grid; gap: 8px; }
.p12-faq-card { padding: 13px 15px; background: #edf2e9; border-radius: 10px; }
.p12-faq-card summary { cursor: pointer; color: #2c6b63; font-weight: 650; }
.p12-answer { line-height: 1.9; }
.p12-interior { max-width: 1120px; margin: auto; padding: 30px; background: #fbf8ee; border-radius: 24px 4px; }
.p12-interior header { margin-bottom: 23px; border-bottom: 1px dashed #afc3b5; padding-bottom: 15px; }
.p12-interior h1 { margin: 0; color: #204c4b; font: 34px Georgia,serif; }
.p12-interior header p { color: #a75536; }
.p12-about-flow { display: grid; gap: 14px; margin-bottom: 25px; }
.p12-journal-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px 22px; }
.p12-measure-ring { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 30px 0; padding: 30px; border: 1px solid #b6cbbd; border-radius: 50%; }
.p12-measure-core { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); padding: 18px; border-radius: 50%; background: #286b68; color: white; text-align: center; line-height: 1.5; }
.p12-measure-ring .p12-tile { min-height: 210px; }
.p12-browser-track { display: grid; grid-template-columns: 75px 1fr 75px 1fr; gap: 12px; align-items: stretch; margin: 25px 0; }
.p12-browser-track > span { display: grid; place-items: center; color: #b45f39; writing-mode: vertical-rl; border-left: 1px solid #adc3b7; }
.p12-handset-body { display: grid; grid-template-columns: 180px 1fr; gap: 22px; margin: 20px 0 25px; }
.p12-handset-body .p12-tile + .p12-tile { margin-top: 12px; }
.p12-handset-window { display: grid; place-content: center; min-height: 260px; border: 8px solid #285d5c; border-radius: 27px; color: #b45f39; font: 22px/1.8 Georgia,serif; text-align: center; }
footer.b35-footer { padding: 28px 5vw; background: #1a4a4d; color: #f3e7c8; }
.b35-footer a { color: #d6e7dc; margin-right: 16px; }
@media (max-width: 850px) {
  main { padding: 20px 4vw 45px; }
  .p12-intro, .p12-atlas, .p12-handset-body { grid-template-columns: 1fr; }
  .p12-atlas aside { flex-direction: row; justify-content: center; }
  .p12-atlas aside b, .p12-atlas aside span { writing-mode: horizontal-tb; }
  .p12-contours, .p12-journal-grid { grid-template-columns: 1fr; }
  .p12-measure-ring { grid-template-columns: 1fr; border-radius: 22px; padding: 18px; }
  .p12-measure-core { position: static; transform: none; order: -1; }
  .p12-browser-track { grid-template-columns: 1fr; }
  .p12-browser-track > span { writing-mode: horizontal-tb; justify-items: start; }
}