.support-guide-page {font-size:18px;line-height:1.65}
.sg-main {max-width:1180px;padding-bottom:48px}
.sg-main p {color:#b8cad7;font-size:17px;line-height:1.65}
.sg-main h2 {font-size:clamp(24px,3vw,32px);line-height:1.25;margin:12px 0}
.sg-back {display:inline-block;padding:14px 0;font-size:16px;color:#55d4ff}
.sg-intro,.sg-check,.sg-sources {background:#0d1924;border:1px solid #2b4051;border-radius:18px;padding:26px;margin:16px 0 26px}
.sg-steps {display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding-left:24px;margin:24px 0 0}
.sg-steps li {padding-left:4px;color:#55d4ff;font-size:20px}
.sg-steps strong {display:block;color:#f3f8fb;font-size:18px;line-height:1.45}
.sg-steps span {display:block;color:#b8cad7;font-size:16px;margin-top:8px;line-height:1.6}
.sg-tabs {display:flex;gap:12px;margin:28px 0 16px;flex-wrap:wrap}
.sg-tabs button {font:700 18px/1.4 'Segoe UI',sans-serif;cursor:pointer;min-height:54px;flex:1;padding:14px 20px;border:1px solid #38566a;border-radius:12px;color:#e1eef7;background:#122230}
.sg-tabs button[aria-pressed=true] {color:#04111a;background:#55d4ff;border-color:#55d4ff}
.sg-tabs button:focus-visible,.sg-sources summary:focus-visible {outline:3px solid #ff9d45;outline-offset:4px}
.sg-panel {scroll-margin-top:130px;margin:30px 0}
.sg-panel[hidden] {display:none}
.sg-grid {display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:24px 0}
.sg-card {display:flex;align-items:center;gap:20px;background:linear-gradient(125deg,#122535,#0d1924);border:1px solid #2b4051;border-radius:16px;padding:20px;min-width:0}
.sg-card img {width:116px;height:144px;object-fit:cover;object-position:center 20%;border-radius:12px;background:#182c3b;border:1px solid #3d5262;flex-shrink:0}
.sg-card-copy {min-width:0}
.sg-card h3 {margin:0;color:#f3f8fb;font-size:24px;line-height:1.3}
.sg-card p {margin:6px 0 0;font-size:16px}
.sg-card .sg-skill {font-size:14px;color:#afc5d5}
.sg-card .sg-effect {font-size:18px;font-weight:700;color:#72e3c4}
.sg-note {border-left:3px solid #ff9d45;background:#122230;padding:12px 20px;border-radius:0 12px 12px 0}
.sg-check li {margin:10px 0;font-size:17px;color:#d6e4ed}
.sg-sources summary {cursor:pointer;min-height:44px;font-size:18px;font-weight:700;color:#55d4ff;display:list-item}
.sg-sources a {color:#55d4ff;text-decoration:underline;font-size:16px}
@media(max-width:760px) {.sg-grid {grid-template-columns:1fr}.sg-steps {grid-template-columns:1fr;gap:20px}.sg-intro,.sg-check,.sg-sources {padding:20px}.sg-tabs {gap:8px}.sg-tabs button {font-size:16px;flex-basis:100%}.sg-card {padding:16px;gap:16px}.sg-card img {width:88px;height:116px}.sg-card h3 {font-size:22px}.sg-card .sg-effect {font-size:17px}.sg-main {width:100%;padding-left:16px;padding-right:16px;box-sizing:border-box}}
@media(prefers-reduced-motion:reduce) {.support-guide-page * {scroll-behavior:auto!important}}
.sg-required {padding:24px 28px;border:2px solid #ffbd66;background:linear-gradient(120deg,#332514,#17212b);border-radius:18px;margin:16px 0 26px}
.sg-required h2 {font-size:clamp(25px,3.5vw,38px);color:#ffdc9f}
.sg-required p {color:#f6e6ce}
.sg-required .eyebrow {color:#ffbd66;font-size:15px;font-weight:800;letter-spacing:.08em}
.sg-required p:last-child {font-size:15px}
.sg-group {margin:32px 0 40px}
.sg-group-title {font-size:24px;line-height:1.4;margin:0 0 8px;padding-top:18px;border-top:1px solid #304859;color:#90e3ff}
.sg-options {border:1px solid #38566a;border-radius:14px;padding:18px;margin:24px 0}
.sg-options summary {font-size:19px;color:#8adfff;font-weight:700;cursor:pointer;min-height:44px}
.sg-portrait-missing {width:116px;min-height:144px;display:flex;flex-direction:column;justify-content:center;text-align:center;flex-shrink:0;background:#243e50;border:1px dashed #688496;border-radius:12px;color:#e6f5ff;padding:10px;box-sizing:border-box;font-size:16px}
.sg-portrait-missing span {font-size:14px;color:#b5cbd9;margin-top:10px}
@media(max-width:760px) {.sg-required {padding:20px}.sg-portrait-missing {width:88px;min-height:116px;font-size:14px}.sg-portrait-missing span {font-size:14px}.sg-group-title {font-size:22px}}