/* Editorial, FAQ, and content-system enhancements. */
.tf-hero--premium { isolation: isolate; }
.tf-hero--premium::after { background: linear-gradient(110deg, transparent 20%, rgba(215,180,117,.2)); content: ""; height: 1px; left: 0; position: absolute; right: 0; top: 46%; z-index: -1; }
.tf-service-list > a { transition: background .25s, padding .25s, transform .25s; }
.tf-service-list > a:hover { transform: translateX(6px); }
.tf-insight-card, .tf-content-cards section { transition: box-shadow .25s, transform .25s; }
.tf-insight-card:hover, .tf-content-cards section:hover { box-shadow: 0 18px 45px rgba(20,35,80,.12); transform: translateY(-4px); }
.tf-prose > h2 { position: relative; }
.tf-prose > h2::before { color: var(--tf-gold); content: "/"; font-family: Georgia, serif; margin-right: 10px; }
.tf-faq { border-top: 1px solid var(--tf-line); margin-top: 72px; padding-top: 45px; }
.tf-faq h2 { font-size: clamp(30px,3.5vw,43px); margin: 0 0 26px; }
.tf-faq details { border-bottom: 1px solid var(--tf-line); padding: 0; }
.tf-faq summary { align-items: center; cursor: pointer; display: flex; font-size: 18px; font-weight: 700; gap: 14px; justify-content: space-between; list-style: none; padding: 22px 4px; }
.tf-faq summary::-webkit-details-marker { display: none; }
.tf-faq summary span { color: var(--tf-blue); font-size: 24px; font-weight: 400; line-height: 1; }
.tf-faq details[open] summary span { transform: rotate(45deg); }
.tf-faq details p { color: var(--tf-muted); margin: 0; max-width: 700px; padding: 0 4px 22px; }
.tf-page-cta { overflow: hidden; position: relative; }
.tf-page-cta::after { border: 1px solid rgba(255,255,255,.25); border-radius: 50%; content: ""; height: 240px; position: absolute; right: -70px; top: -120px; width: 240px; }
.tf-page-cta > * { position: relative; z-index: 1; }
.tf-path-grid, .tf-signal-grid { display: grid; gap: 16px; grid-template-columns: repeat(3,1fr); }
.tf-path-grid article { background: #fff; border: 1px solid var(--tf-line); display: flex; flex-direction: column; min-height: 310px; padding: 28px; position: relative; }
.tf-path-grid article::before { background: var(--tf-blue); content: ""; height: 3px; left: 0; position: absolute; right: 0; top: 0; transform: scaleX(0); transform-origin: left; transition: transform .3s; }
.tf-path-grid article:hover::before { transform: scaleX(1); }
.tf-path-grid article > p, .tf-signal-grid span { color: var(--tf-blue); font-size: 11px; font-weight: 800; letter-spacing: .13em; margin: 0; }
.tf-path-grid h3 { font-size: 23px; letter-spacing: -.04em; line-height: 1.25; margin: 30px 0 16px; }
.tf-path-grid ul { color: var(--tf-muted); font-size: 14px; line-height: 1.8; margin: 0 0 28px; padding-left: 18px; }
.tf-path-grid a { color: var(--tf-ink); font-size: 14px; font-weight: 700; margin-top: auto; text-decoration: none; }
.tf-path-grid a:hover { color: var(--tf-blue); }
.tf-signal-grid { border-top: 1px solid rgba(255,255,255,.28); margin-top: 92px; padding-top: 25px; }
.tf-signal-grid article { padding-right: 24px; }
.tf-signal-grid h3 { color: #fff; font-size: 22px; letter-spacing: -.04em; line-height: 1.3; margin: 18px 0 10px; }
.tf-signal-grid p { color: #d2d8e8; font-size: 14px; line-height: 1.85; margin: 0; }
.tf-contact-band p:not(.tf-kicker) { font-size: 17px; line-height: 1.85; margin: 0 0 30px; max-width: 590px; }
@media (max-width:800px) { .tf-service-list > a:hover { transform: none; } .tf-faq { margin-top: 52px; } .tf-faq summary { font-size: 16px; } .tf-path-grid, .tf-signal-grid { grid-template-columns: 1fr; } .tf-path-grid article { min-height: auto; } .tf-signal-grid { gap: 30px; margin-top: 55px; } .tf-signal-grid article { padding-right: 0; } }

.tf-deliverables { border-top: 1px solid var(--tf-line); margin-top: 76px; padding-top: 48px; }
.tf-deliverables-head { align-items: end; display: grid; gap: 42px; grid-template-columns: 1.25fr .75fr; margin-bottom: 28px; }
.tf-deliverables h2, .tf-evidence h2 { font-size: clamp(28px,3.5vw,43px); letter-spacing: -.05em; line-height: 1.2; margin: 0; }
.tf-deliverables-head > p { color: var(--tf-muted); font-size: 14px; line-height: 1.85; margin: 0; }
.tf-deliverable-grid { display: grid; gap: 14px; grid-template-columns: repeat(3,1fr); }
.tf-deliverable-grid article { background: linear-gradient(135deg,#f8faff,#fff); border: 1px solid var(--tf-line); min-height: 200px; padding: 24px; }
.tf-deliverable-grid h3 { color: var(--tf-blue); font-size: 18px; margin: 0 0 15px; }
.tf-deliverable-grid p { color: var(--tf-muted); font-size: 14px; line-height: 1.85; margin: 0; }
.tf-evidence { background: linear-gradient(135deg,#f3f6ff,#fff); border: 1px solid #d7dfef; margin-top: 58px; padding: 34px; }
.tf-evidence > p:not(.tf-kicker) { line-height: 1.9; margin: 18px 0 0; }
.tf-ip-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tf-ip-list span { background: #fff; border: 1px solid #d7dfef; color: #24385f; font-size: 13px; padding: 7px 10px; }
.tf-evidence-note { border-top: 1px solid #d7dfef; color: var(--tf-muted); font-size: 13px; padding-top: 16px; }
.tf-page-layout { align-items: start; display: grid; gap: clamp(38px,6vw,92px); grid-template-columns: minmax(0,1fr) minmax(255px,310px); }
.tf-page-layout .tf-prose { max-width: none; }
.tf-service-rail { background: linear-gradient(145deg,#f5f7ff,#fff); border: 1px solid #d9e1f1; box-shadow: 0 18px 44px rgba(20,35,80,.08); padding: 26px; position: sticky; top: 28px; }
.tf-service-rail .tf-kicker { font-size: 10px; margin-bottom: 12px; }
.tf-service-rail h2 { font-size: 23px; letter-spacing: -.04em; line-height: 1.25; margin: 0; }
.tf-service-rail > ul { border-top: 1px solid #d9e1f1; list-style: none; margin: 21px 0 0; padding: 6px 0 0; }
.tf-service-rail > ul li { border-bottom: 1px solid #d9e1f1; color: #37465f; font-size: 14px; line-height: 1.55; padding: 13px 0 13px 18px; position: relative; }
.tf-service-rail > ul li::before { color: var(--tf-blue); content: "•"; left: 2px; position: absolute; }
.tf-rail-related { margin-top: 23px; }
.tf-rail-related > p { color: var(--tf-muted); font-size: 12px; font-weight: 800; letter-spacing: .1em; margin: 0 0 9px; text-transform: uppercase; }
.tf-rail-related a { border-top: 1px solid #d9e1f1; color: var(--tf-ink); display: flex; font-size: 14px; font-weight: 700; justify-content: space-between; padding: 10px 0; text-decoration: none; }
.tf-rail-related a:hover { color: var(--tf-blue); }
.tf-rail-cta { background: var(--tf-blue); color: #fff; display: flex; font-size: 14px; font-weight: 700; justify-content: space-between; margin-top: 18px; padding: 13px 15px; text-decoration: none; }
.tf-rail-cta:hover { background: #18389e; }
@media (max-width:800px) { .tf-deliverables { margin-top: 58px; } .tf-deliverables-head { grid-template-columns: 1fr; } .tf-deliverable-grid { grid-template-columns: 1fr; } .tf-deliverable-grid article { min-height: auto; } .tf-evidence { padding: 26px; } }
@media (max-width:980px) { .tf-page-layout { gap: 42px; grid-template-columns: 1fr; } .tf-service-rail { position: static; width: min(100%,680px); } }
@media (max-width:480px) { .tf-service-rail { padding: 22px; } .tf-service-rail h2 { font-size: 21px; } }

/* Full-width editorial pages, homepage proof sections, and responsive primary navigation. */
.tf-prose--wide { max-width: 100%; }
.tf-prose--wide > p, .tf-prose--wide > ul { max-width: 1040px; }
.tf-prose--wide .tf-content-cards { max-width: 1120px; }
.tf-case-grid, .tf-client-grid, .tf-honor-grid { display: grid; gap: 16px; }
.tf-case-grid { grid-template-columns: repeat(3,1fr); }
.tf-case-grid article { background: #fff; border: 1px solid var(--tf-line); display: flex; flex-direction: column; min-height: 286px; padding: 28px; }
.tf-case-grid span, .tf-honor-grid span { color: var(--tf-blue); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.tf-case-grid h3, .tf-honor-grid h3 { font-size: 25px; letter-spacing: -.04em; line-height: 1.3; margin: 36px 0 14px; }
.tf-case-grid p, .tf-honor-grid p { color: var(--tf-muted); font-size: 14px; line-height: 1.85; margin: 0; }
.tf-case-grid a { border-top: 1px solid var(--tf-line); color: var(--tf-ink); display: flex; font-size: 14px; font-weight: 700; justify-content: space-between; margin-top: auto; padding-top: 18px; text-decoration: none; }
.tf-case-grid a:hover { color: var(--tf-blue); }
.tf-client-grid { grid-template-columns: repeat(4,1fr); }
.tf-client-grid article { background: #f8f9fc; border: 1px solid #e1e5ec; min-height: 150px; padding: 24px; }
.tf-client-grid strong, .tf-client-grid span { display: block; }
.tf-client-grid strong { font-size: 18px; line-height: 1.35; }
.tf-client-grid span { color: var(--tf-muted); font-size: 13px; line-height: 1.75; margin-top: 16px; }
.tf-honors { background: #eff4fb; }
.tf-honor-grid { grid-template-columns: repeat(3,1fr); margin-bottom: 38px; }
.tf-honor-grid article { background: rgba(255,255,255,.75); border-top: 3px solid var(--tf-gold); min-height: 220px; padding: 28px; }
.tf-header { position: sticky; top: 0; transition: box-shadow .25s, background .25s; z-index: 100; }
.tf-header.is-stuck { background: rgba(251,251,250,.985); box-shadow: 0 10px 26px rgba(16,26,47,.1); }
.admin-bar .tf-header { top: 32px; }
.tf-menu li { position: relative; }
.tf-menu .sub-menu { background: #fff; border: 1px solid var(--tf-line); box-shadow: 0 16px 30px rgba(16,26,47,.12); display: none; left: -18px; list-style: none; margin: 0; min-width: 148px; padding: 8px 0; position: absolute; top: 100%; z-index: 101; }
.tf-menu .sub-menu li { padding: 0; }
.tf-menu .sub-menu a { display: block; font-size: 13px; padding: 8px 18px; white-space: nowrap; }
.tf-menu .menu-item-has-children:hover > .sub-menu, .tf-menu .menu-item-has-children:focus-within > .sub-menu { display: block; }
@media (max-width:800px) { .admin-bar .tf-header { top: 46px; } .tf-case-grid, .tf-honor-grid { grid-template-columns: 1fr; } .tf-client-grid { grid-template-columns: repeat(2,1fr); } .tf-case-grid article, .tf-honor-grid article { min-height: auto; } .tf-menu .sub-menu { border: 0; box-shadow: none; display: block; margin: 4px 0 0; padding: 0 0 0 15px; position: static; } .tf-menu .sub-menu a { padding: 7px 0; } }
@media (max-width:480px) { .tf-client-grid { grid-template-columns: 1fr; } .tf-case-grid article, .tf-honor-grid article { padding: 23px; } }

/* Article headings use a quieter reading scale than landing-page section titles. */
.single-post .tf-content > h2, .single-post .tf-content .entry-content > h2 { font-size: clamp(28px,2.25vw,32px); letter-spacing: -.035em; line-height: 1.38; margin: 48px 0 18px; }
.single-post .tf-content > h3, .single-post .tf-content .entry-content > h3 { font-size: clamp(21px,1.7vw,24px); line-height: 1.45; margin: 34px 0 14px; }
@media (max-width:800px) { .single-post .tf-content > h2, .single-post .tf-content .entry-content > h2 { font-size: 29px; line-height: 1.4; margin-top: 40px; } }
@media (max-width:480px) { .single-post .tf-content > h2, .single-post .tf-content .entry-content > h2 { font-size: 26px; letter-spacing: -.025em; line-height: 1.42; margin-top: 34px; } }

/* Readable comparison tables in article content. */
.single-post .tf-content table { background: #fff; border: 1px solid #c8d4e8; border-collapse: collapse; margin: 28px 0; width: 100%; }
.single-post .tf-content th, .single-post .tf-content td { border: 1px solid #c8d4e8; line-height: 1.65; padding: 13px 15px; text-align: left; vertical-align: top; }
.single-post .tf-content th { background: #edf4ff; color: #153d83; font-weight: 800; }
.single-post .tf-content tbody tr:nth-child(even) td { background: #f8fbff; }
.single-post .tf-content tbody tr:hover td { background: #f1f6ff; }
@media (max-width:640px) { .single-post .tf-content table { display: block; min-width: 680px; overflow-x: auto; } .single-post .tf-content { overflow-x: auto; } }

/* AI Writer page: authorized content body, preserving the active site header/footer. */
.tf-ai-page { background: #fff; color: #0f1b37; overflow: hidden; }
.tf-ai-hero { background: linear-gradient(115deg,#061630 0%,#0a2355 49%,#245ac9 100%); color: #fff; padding: 112px 0 84px; position: relative; }
.tf-ai-hero::before { background-image: linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px); background-size: 54px 54px; content: ""; inset: 0; opacity: .52; position: absolute; }
.tf-ai-hero-grid { align-items: center; display: grid; gap: 72px; grid-template-columns: minmax(0,.93fr) minmax(440px,1.07fr); position: relative; }
.tf-ai-page .tf-kicker { color: #3270ff; font-size: 12px; }
.tf-ai-hero .tf-kicker { color: #71a1ff; }
.tf-ai-hero h1, .tf-ai-section h2 { font-size: clamp(42px,5.05vw,76px); font-weight: 800; letter-spacing: -.08em; line-height: 1.08; margin: 0; }
.tf-ai-hero h1 { color: #fff; }
.tf-ai-hero > .tf-wrap > div > p:not(.tf-kicker) { color: #d5e2fb; font-size: 18px; line-height: 1.85; margin: 26px 0 0; max-width: 620px; }
.tf-ai-actions { align-items: center; display: flex; gap: 28px; margin-top: 35px; }
.tf-ai-button { align-items: center; display: inline-flex; font-weight: 800; gap: 24px; padding: 16px 22px; text-decoration: none; }
.tf-ai-button--light { background: #fff; color: #10418d; }
.tf-ai-text-link { color: #fff; font-size: 14px; font-weight: 800; text-decoration: none; }
.tf-ai-proof { display: flex; flex-wrap: wrap; gap: 18px 30px; list-style: none; margin: 30px 0 0; padding: 0; }
.tf-ai-proof li { color: #e4edff; font-size: 13px; }
.tf-ai-window { background: #f7faff; border: 1px solid rgba(255,255,255,.7); border-radius: 18px; box-shadow: 0 28px 70px rgba(0,0,0,.28); color: #112657; overflow: hidden; }
.tf-ai-window-bar { align-items: center; background: #0e2e69; color: #fff; display: flex; font-family: Consolas,monospace; font-size: 12px; gap: 9px; padding: 15px 18px; }
.tf-ai-window-bar i { background: #ff7a69; border-radius: 50%; height: 9px; width: 9px; }.tf-ai-window-bar i:nth-child(2) { background: #f8ca58; }.tf-ai-window-bar i:nth-child(3) { background: #51d59a; }.tf-ai-window-bar b { color: #79f0ba; font-size: 12px; font-weight: 700; margin-left: auto; }
.tf-ai-window-body { display: grid; grid-template-columns: 128px minmax(0,1fr); min-height: 384px; }
.tf-ai-window-body > aside { background: #edf3ff; display: flex; flex-direction: column; font-size: 12px; gap: 16px; padding: 22px 13px; }.tf-ai-window-body > aside small { color: #243760; font-weight: 700; }.tf-ai-window-body > aside strong { background: #d8e6ff; color: #1761e8; padding: 11px 9px; }.tf-ai-window-body > aside span { color: #3d5d91; padding: 0 9px; }
.tf-ai-window-form { padding: 22px 30px 0; }.tf-ai-form-head { display: flex; font-size: 13px; justify-content: space-between; margin-bottom: 22px; }.tf-ai-form-head span { color: #16a56c; font-size: 12px; }
.tf-ai-window-form label { color: #263b6c; display: block; font-size: 12px; font-weight: 700; margin-top: 14px; }.tf-ai-window-form label em { color: #ee574b; font-style: normal; margin-left: 5px; }.tf-ai-window-form input,.tf-ai-window-form textarea { background: #fff; border: 1px solid #a9c1f5; border-radius: 5px; box-sizing: border-box; color: #38517f; display: block; font: inherit; margin-top: 7px; padding: 10px; resize: none; width: 100%; }.tf-ai-window-form textarea { height: 54px; }
.tf-ai-form-pair { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; }.tf-ai-window-form > p { align-items: center; color: #60739a; display: flex; font-size: 11px; gap: 8px; }.tf-ai-window-form > p b { background: #dae5f8; border-radius: 4px; display: block; height: 6px; overflow: hidden; width: 110px; }.tf-ai-window-form > p b i { background: #2c79ed; display: block; height: 100%; width: 72%; }.tf-ai-window-form footer { border-top: 1px solid #dbe5f4; color: #59709d; font-size: 11px; margin: 20px -30px 0; padding: 13px 20px; }.tf-ai-window-form footer strong { color: #1766eb; float: right; }
.tf-ai-section { padding: 126px 0; }.tf-ai-section--pale { background: #f1f6ff; }.tf-ai-section h2 { max-width: 920px; }.tf-ai-intro { color: #57709c; font-size: 18px; line-height: 1.8; margin: 25px 0 0; max-width: 940px; }
.tf-ai-card-grid { display: grid; gap: 22px; grid-template-columns: repeat(3,1fr); margin-top: 58px; }.tf-ai-card-grid article { border: 1px solid #d6e1f4; border-radius: 16px; min-height: 235px; padding: 34px; }.tf-ai-card-grid span { color: #2469f5; font-size: 13px; font-weight: 800; }.tf-ai-card-grid h3 { font-size: 24px; letter-spacing: -.04em; line-height: 1.3; margin: 42px 0 15px; }.tf-ai-card-grid p { color: #5d739d; font-size: 15px; line-height: 1.8; margin: 0; }
.tf-ai-flow { display: grid; gap: 34px; grid-template-columns: repeat(4,1fr); list-style: none; margin: 62px 0 0; padding: 0; }.tf-ai-flow li { position: relative; }.tf-ai-flow li:not(:last-child)::after { border-top: 1px solid #9dbbff; content: "→"; color: #78a2ff; font-size: 22px; position: absolute; right: -24px; top: 20px; width: 40px; }.tf-ai-flow span { align-items: center; background: #d9e7ff; border-radius: 18px; color: #1760e9; display: flex; font-size: 16px; font-weight: 800; height: 66px; justify-content: center; width: 66px; }.tf-ai-flow h3 { font-size: 20px; line-height: 1.35; margin: 25px 0 12px; }.tf-ai-flow p { color: #5c729a; font-size: 14px; line-height: 1.8; margin: 0; }
.tf-ai-split { align-items: center; display: grid; gap: 86px; grid-template-columns: minmax(0,.92fr) minmax(400px,1.08fr); }.tf-ai-split--reverse { grid-template-columns: minmax(400px,1.08fr) minmax(0,.92fr); }.tf-ai-definition-list { margin: 42px 0 0; }.tf-ai-definition-list div { display: grid; gap: 26px; grid-template-columns: 195px 1fr; padding: 13px 0; }.tf-ai-definition-list dt { font-weight: 800; }.tf-ai-definition-list dd { color: #5d739d; margin: 0; }
.tf-ai-keyword-board,.tf-ai-writing-board { background: #fff; border: 1px solid #ccdbf3; border-radius: 17px; box-shadow: 0 20px 46px rgba(27,66,139,.1); overflow: hidden; }.tf-ai-keyword-board > header { font-weight: 800; padding: 20px 24px; }.tf-ai-keyword-board > header span { color: #6c82aa; float: right; font-size: 13px; font-weight: 400; }.tf-ai-keyword-stats { background: linear-gradient(110deg,#1f61bf,#218dcc); color: #fff; display: grid; grid-template-columns: repeat(3,1fr); padding: 25px; }.tf-ai-keyword-stats b { font-size: 30px; }.tf-ai-keyword-stats small { display: block; font-size: 12px; font-weight: 400; margin-top: 24px; }.tf-ai-keyword-board ul { list-style: none; margin: 0; padding: 0; }.tf-ai-keyword-board li { align-items: center; border-bottom: 1px solid #e1e9f6; display: grid; font-size: 13px; gap: 13px; grid-template-columns: 1.2fr 1fr 28px 55px; padding: 17px 24px; }.tf-ai-keyword-board li span { color: #687da7; }.tf-ai-keyword-board li em { color: #0c9e5f; font-style: normal; }.tf-ai-keyword-board li b { background: #e6efff; color: #1766ed; font-size: 11px; padding: 6px 7px; text-align: center; }.tf-ai-keyword-board footer { color: #6078a2; font-size: 13px; padding: 17px 24px; }
.tf-ai-writing-board > header { align-items: center; border-bottom: 1px solid #dbe5f4; display: flex; gap: 12px; padding: 17px 21px; text-align: center; }.tf-ai-writing-board > header i { background: #25bb76; border-radius: 50%; height: 11px; width: 11px; }.tf-ai-writing-board > header b { margin: auto; }.tf-ai-writing-board > header span { background: #dff8e9; border-radius: 18px; color: #16935c; font-size: 12px; padding: 6px 10px; }.tf-ai-writing-board > div { display: grid; grid-template-columns: 132px 1fr; min-height: 290px; }.tf-ai-writing-board > div > aside { background: #f5f8fd; display: flex; flex-direction: column; gap: 8px; padding: 22px 16px; }.tf-ai-writing-board aside small { color: #657da5; font-size: 11px; margin-top: 6px; }.tf-ai-writing-board aside strong { font-size: 13px; }.tf-ai-writing-board main { padding: 29px; }.tf-ai-writing-board main h3 { font-size: 19px; line-height: 1.6; margin: 0; }.tf-ai-writing-board main p { display: grid; gap: 14px; margin: 23px 0 36px; }.tf-ai-writing-board main p i { background: #dbe4f3; display: block; height: 8px; width: 90%; }.tf-ai-writing-board main p i:nth-child(2) { width: 72%; }.tf-ai-writing-board main p i:nth-child(3) { width: 82%; }.tf-ai-writing-board main p i:nth-child(4) { width: 61%; }.tf-ai-writing-board main small { color: #078b60; font-size: 11px; }.tf-ai-writing-board > footer { border-top: 1px solid #dbe5f4; color: #647ca7; font-size: 12px; padding: 15px 21px; }.tf-ai-writing-board > footer strong { color: #009665; float: right; }
.tf-ai-faq { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; margin-top: 50px; }.tf-ai-faq details { background: #fff; border: 1px solid #d4e0f3; border-radius: 13px; padding: 22px 25px; }.tf-ai-faq summary { cursor: pointer; font-size: 18px; font-weight: 800; }.tf-ai-faq p { color: #5b739e; line-height: 1.85; margin: 20px 0 0; }
@media (max-width:1040px) { .tf-ai-hero-grid,.tf-ai-split,.tf-ai-split--reverse { gap: 48px; grid-template-columns: 1fr; }.tf-ai-hero h1 { max-width: 760px; }.tf-ai-window { max-width: 720px; }.tf-ai-split--reverse .tf-ai-writing-board { grid-row: 2; }.tf-ai-card-grid { gap: 15px; }.tf-ai-section { padding: 94px 0; } }
@media (max-width:800px) { .tf-ai-hero { padding: 78px 0 64px; }.tf-ai-hero-grid { gap: 44px; }.tf-ai-hero h1,.tf-ai-section h2 { font-size: clamp(38px,8vw,58px); }.tf-ai-window-body { grid-template-columns: 104px 1fr; }.tf-ai-window-form { padding: 20px 17px 0; }.tf-ai-window-form footer { margin-left: -17px; margin-right: -17px; }.tf-ai-card-grid,.tf-ai-flow { grid-template-columns: 1fr 1fr; }.tf-ai-flow li:nth-child(2)::after { display: none; }.tf-ai-keyword-board { width: 100%; }.tf-ai-faq { grid-template-columns: 1fr; } }
@media (max-width:560px) { .tf-ai-actions { align-items: flex-start; flex-direction: column; gap: 18px; }.tf-ai-proof { display: block; }.tf-ai-proof li + li { margin-top: 9px; }.tf-ai-window-body { grid-template-columns: 1fr; }.tf-ai-window-body > aside { display: grid; grid-template-columns: repeat(2,1fr); gap: 9px; padding: 14px; }.tf-ai-window-body > aside small { display: none; }.tf-ai-window-body > aside strong,.tf-ai-window-body > aside span { padding: 7px; }.tf-ai-form-pair,.tf-ai-card-grid,.tf-ai-flow { grid-template-columns: 1fr; }.tf-ai-flow li:not(:last-child)::after { display: none; }.tf-ai-flow { gap: 29px; }.tf-ai-definition-list div { gap: 7px; grid-template-columns: 1fr; }.tf-ai-keyword-board li { grid-template-columns: 1fr 76px; padding: 15px; }.tf-ai-keyword-board li span { display: none; }.tf-ai-keyword-board li em { text-align: right; }.tf-ai-keyword-board li b { grid-column: 2; grid-row: 1 / span 2; }.tf-ai-keyword-stats { padding: 20px 15px; }.tf-ai-keyword-stats b { font-size: 25px; }.tf-ai-keyword-stats small { margin-top: 12px; }.tf-ai-writing-board > div { grid-template-columns: 98px 1fr; }.tf-ai-writing-board main { padding: 20px; }.tf-ai-writing-board main h3 { font-size: 16px; }.tf-ai-writing-board main p { margin: 20px 0; }.tf-ai-writing-board > footer strong { display: block; float: none; margin-top: 5px; }.tf-ai-faq details { padding: 19px; }.tf-ai-faq summary { font-size: 16px; } }

/* AI Writer typography refinement: calmer hierarchy and Chinese reading rhythm. */
.tf-ai-hero h1 { font-size: clamp(38px,4vw,58px); letter-spacing: -.055em; line-height: 1.2; max-width: 660px; }
.tf-ai-section h2 { font-size: clamp(36px,3.7vw,56px); letter-spacing: -.055em; line-height: 1.2; }
.tf-ai-hero > .tf-wrap > div > p:not(.tf-kicker), .tf-ai-intro { font-size: 17px; line-height: 1.9; }
.tf-ai-card-grid h3 { font-size: 22px; line-height: 1.45; margin: 34px 0 13px; }
.tf-ai-card-grid p, .tf-ai-flow p, .tf-ai-keyword-board footer, .tf-ai-definition-list dd { font-size: 14px; line-height: 1.9; }
.tf-ai-flow h3 { font-size: 19px; line-height: 1.45; }
.tf-ai-faq summary { line-height: 1.5; }
.tf-ai-faq p { font-size: 15px; line-height: 1.9; }
@media (max-width:800px) { .tf-ai-hero h1 { font-size: clamp(36px,7vw,50px); line-height: 1.22; }.tf-ai-section h2 { font-size: clamp(32px,6.5vw,46px); line-height: 1.24; }.tf-ai-hero > .tf-wrap > div > p:not(.tf-kicker), .tf-ai-intro { font-size: 16px; line-height: 1.85; } }
@media (max-width:560px) { .tf-ai-hero h1 { font-size: 36px; letter-spacing: -.04em; line-height: 1.25; }.tf-ai-section h2 { font-size: 31px; letter-spacing: -.04em; line-height: 1.28; }.tf-ai-card-grid h3 { font-size: 20px; }.tf-ai-faq p { font-size: 14px; } }

/* Keep the final writing panel and FAQ visually connected. */
#ai-faq { margin-top: -82px; padding-top: 44px; }
@media (max-width:800px) { #ai-faq { margin-top: -56px; padding-top: 38px; } }

/* Align the writing preview with the complete adjacent content column on desktop. */
.tf-ai-split--reverse { align-items: stretch; }
.tf-ai-split--reverse .tf-ai-writing-board { display: flex; flex-direction: column; min-height: 100%; }
.tf-ai-split--reverse .tf-ai-writing-board > div { flex: 1; }
@media (max-width:1040px) { .tf-ai-split--reverse { align-items: start; } .tf-ai-split--reverse .tf-ai-writing-board { min-height: 0; } }