:root{--ink:#17202a;--muted:#5f6b76;--line:#e6e8eb;--bg:#f7f8fa;--card:#fff;--accent:#d95f18;--accent2:#194f77;--soft:#fff4ec;--ok:#16794b;--shadow:0 10px 28px rgba(28,39,49,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:#fff;line-height:1.8}a{color:var(--accent2);text-decoration-thickness:1px;text-underline-offset:3px}img{max-width:100%;height:auto}.wrap{width:min(1120px,calc(100% - 36px));margin:auto}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{text-decoration:none;color:var(--ink);font-weight:800;letter-spacing:.01em}.brand small{display:block;color:var(--muted);font-size:11px;font-weight:600;line-height:1.2}.nav{display:flex;gap:20px;font-size:14px}.nav a{text-decoration:none;color:var(--ink);font-weight:700}.hero{background:linear-gradient(135deg,#fff 0,#fff7f1 55%,#f2f7fb 100%);border-bottom:1px solid var(--line)}.hero-inner{padding:72px 0 64px;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}.eyebrow{font-size:13px;color:var(--accent);font-weight:800;letter-spacing:.08em}.hero h1{font-size:clamp(34px,5.5vw,62px);line-height:1.16;margin:.35em 0 .3em;letter-spacing:-.035em}.hero p{font-size:18px;color:#3c4954;max-width:720px}.hero-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow)}.hero-card strong{display:block;font-size:18px;margin-bottom:10px}.checklist{list-style:none;padding:0;margin:0}.checklist li{padding:9px 0;border-bottom:1px dashed var(--line)}.checklist li:before{content:"✓";color:var(--ok);font-weight:900;margin-right:10px}.pr-note{background:#fffbea;border:1px solid #efe1a8;padding:10px 14px;font-size:13px;color:#655c32;border-radius:10px;margin:18px 0}.section{padding:58px 0}.section.alt{background:var(--bg)}.section h2{font-size:30px;line-height:1.35;margin:0 0 24px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 6px 20px rgba(28,39,49,.04)}.card h3{margin:0 0 10px;font-size:19px}.card p{margin:0;color:var(--muted)}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.article-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;text-decoration:none;color:var(--ink);transition:.15s}.article-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.article-card .tag{font-size:12px;color:var(--accent);font-weight:800}.article-card h3{font-size:18px;line-height:1.5;margin:8px 0}.article-card p{font-size:14px;color:var(--muted);margin:auto 0 0}.cta-box{background:#17202a;color:#fff;border-radius:22px;padding:34px;margin:36px 0}.cta-box h2,.cta-box h3{color:#fff;margin-top:0}.cta-box p{color:#dfe5ea}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:#fff!important;text-decoration:none;font-weight:800;padding:14px 22px;border-radius:10px;border:0;cursor:pointer}.btn.secondary{background:#fff;color:var(--ink)!important}.compare{width:100%;border-collapse:collapse;background:#fff}.compare th,.compare td{border-bottom:1px solid var(--line);padding:16px;text-align:left;vertical-align:top}.compare th{background:#f3f5f7;font-size:13px}.badge{display:inline-block;padding:2px 8px;border-radius:999px;background:var(--soft);color:var(--accent);font-size:12px;font-weight:800}.breadcrumbs{font-size:13px;color:var(--muted);padding:18px 0}.article-wrap{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:44px;align-items:start}.article h1{font-size:clamp(30px,4vw,46px);line-height:1.3;letter-spacing:-.02em;margin:10px 0 14px}.article .lead{font-size:18px;color:#3d4852}.article h2{font-size:28px;line-height:1.45;margin:48px 0 16px;padding-bottom:10px;border-bottom:3px solid #f0d2bf}.article h3{font-size:21px;margin:32px 0 10px}.article ul,.article ol{padding-left:1.4em}.article table{width:100%;border-collapse:collapse;margin:22px 0}.article th,.article td{border:1px solid var(--line);padding:12px;vertical-align:top}.article th{background:#f6f7f8}.notice{background:#f5f8fb;border-left:4px solid var(--accent2);padding:18px 20px;border-radius:8px;margin:24px 0}.warning{background:#fff7f4;border-left-color:#d15a3a}.source-box{background:#f6f7f8;border:1px solid var(--line);padding:18px;border-radius:12px;font-size:14px;margin-top:42px}.source-box h3{margin:0 0 8px;font-size:16px}.side{position:sticky;top:96px}.toc{border:1px solid var(--line);background:#fff;border-radius:14px;padding:20px}.toc strong{display:block;margin-bottom:10px}.toc a{display:block;font-size:13px;padding:6px 0;color:#45515b;text-decoration:none}.site-footer{background:#111820;color:#c8d0d7;padding:42px 0;margin-top:60px}.site-footer a{color:#e7edf2}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.footer-grid h4{color:#fff;margin:0 0 10px}.footer-grid ul{list-style:none;padding:0;margin:0}.footer-grid li{margin:5px 0}.copyright{font-size:12px;color:#929da6;margin-top:28px;border-top:1px solid #2b343c;padding-top:20px}.page-head{padding:52px 0 30px;background:var(--bg);border-bottom:1px solid var(--line)}.page-head h1{font-size:42px;margin:0}.form-note{background:#f7f8fa;padding:22px;border-radius:14px}.mini{font-size:13px;color:var(--muted)}
@media(max-width:900px){.hero-inner,.article-wrap{grid-template-columns:1fr}.hero-inner{padding:46px 0}.hero-card{display:none}.article-grid,.grid-3{grid-template-columns:1fr 1fr}.side{position:static}.nav{display:none}.footer-grid{grid-template-columns:1fr 1fr}.article h1{font-size:34px}}
@media(max-width:620px){.wrap{width:min(100% - 26px,1120px)}.article-grid,.grid-3{grid-template-columns:1fr}.header-inner{height:62px}.hero h1{font-size:38px}.hero p{font-size:16px}.section{padding:42px 0}.section h2{font-size:26px}.article h2{font-size:24px}.article h3{font-size:19px}.compare{font-size:13px}.compare th,.compare td{padding:10px}.footer-grid{grid-template-columns:1fr}.cta-box{padding:26px 22px}}


/* v2 visual enhancements */
:root{--cream:#fff9f3;--sky:#eef6fb;--green-soft:#eef8f2;--yellow-soft:#fff8dc;--red-soft:#fff0ec;--blue:#246b91;--orange:#e96f24;--deep:#173247}
body{background:linear-gradient(#fff,#fff 65%,#fbfcfd)}
.site-header{box-shadow:0 2px 12px rgba(23,50,71,.05)}
.brand{font-size:18px}.brand:before{content:"";display:inline-block;width:12px;height:12px;border-radius:3px;background:linear-gradient(135deg,var(--orange),#ffb35c);margin-right:8px;vertical-align:1px;transform:rotate(45deg)}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#fffaf5 0%,#fff 48%,#edf7fb 100%)}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(1px);opacity:.5;pointer-events:none}.hero:before{width:340px;height:340px;background:#ffe5cf;right:-120px;top:-120px}.hero:after{width:260px;height:260px;background:#d9edf7;right:13%;bottom:-170px}
.hero-inner{position:relative;z-index:1}.hero-card{border:0;background:rgba(255,255,255,.92);box-shadow:0 18px 55px rgba(23,50,71,.12)}
.eyebrow{display:inline-flex;align-items:center;gap:7px;background:#fff1e5;border:1px solid #ffd9bd;padding:6px 10px;border-radius:999px;letter-spacing:.04em}.eyebrow:before{content:"✓";display:grid;place-items:center;width:18px;height:18px;border-radius:50%;background:var(--orange);color:white;font-size:11px}
.btn{border-radius:999px;box-shadow:0 8px 18px rgba(217,95,24,.18);transition:.18s}.btn:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(217,95,24,.24)}
.section-kicker{font-size:13px;font-weight:800;color:var(--orange);letter-spacing:.08em;margin-bottom:5px}.section-title-row{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.section-title-row h2{margin:0}.section-title-row p{max-width:520px;margin:0;color:var(--muted);font-size:14px}
.grid-3 .card{position:relative;overflow:hidden;padding-top:27px}.grid-3 .card:before{content:"";position:absolute;left:0;top:0;width:100%;height:5px;background:var(--orange)}.grid-3 .card:nth-child(2):before{background:var(--blue)}.grid-3 .card:nth-child(3):before{background:#2e8b62}
.icon-bubble{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:25px;background:var(--soft);margin-bottom:13px}.card:nth-child(2) .icon-bubble{background:var(--sky)}.card:nth-child(3) .icon-bubble{background:var(--green-soft)}
.article-card{position:relative;overflow:hidden}.article-card:after{content:"→";position:absolute;right:17px;top:17px;width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:#f5f7f8;color:#677580;font-weight:800}.article-card:hover:after{background:var(--orange);color:#fff}.article-card .tag{display:inline-flex;align-self:flex-start;background:var(--soft);padding:3px 9px;border-radius:999px}.article-card:nth-child(3n+2) .tag{background:var(--sky);color:var(--blue)}.article-card:nth-child(3n) .tag{background:var(--green-soft);color:#257050}
.visual-panel{border:1px solid #e7ebee;border-radius:22px;background:#fff;padding:28px;box-shadow:0 10px 30px rgba(23,50,71,.06)}
.visual-panel h3{margin:0 0 6px;font-size:21px}.visual-panel .visual-lead{margin:0 0 22px;color:var(--muted);font-size:14px}
.flow-diagram{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;align-items:stretch}.flow-step{position:relative;border-radius:16px;padding:20px 16px;background:#fff8f2;border:1px solid #f6d8c4;text-align:center}.flow-step:nth-child(2){background:#f2f7fb;border-color:#d5e6f1}.flow-step:nth-child(3){background:#f0f8f3;border-color:#d4eadb}.flow-step:nth-child(4){background:#fff8dc;border-color:#efe2a5}.flow-step:not(:last-child):after{content:"→";position:absolute;right:-21px;top:50%;transform:translateY(-50%);z-index:3;font-weight:900;color:#8a969f;background:#fff;border-radius:50%;width:27px;height:27px;display:grid;place-items:center}.flow-icon{font-size:28px;line-height:1;margin-bottom:8px}.flow-step strong{display:block;font-size:15px;margin-bottom:3px}.flow-step span{font-size:12px;color:var(--muted)}
.cost-bars{display:grid;gap:13px;margin-top:20px}.cost-row{display:grid;grid-template-columns:130px 1fr 56px;gap:12px;align-items:center;font-size:13px}.cost-track{height:14px;background:#edf0f2;border-radius:999px;overflow:hidden}.cost-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--orange),#f3a25d)}.cost-row:nth-child(2) .cost-fill{background:linear-gradient(90deg,#367da3,#76b2d1)}.cost-row:nth-child(3) .cost-fill{background:linear-gradient(90deg,#2f8c64,#72ba91)}.cost-row:nth-child(4) .cost-fill{background:linear-gradient(90deg,#c69b35,#e5c76c)}.cost-note{font-size:12px;color:var(--muted);margin-top:12px}
.compare-strip{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:center;background:linear-gradient(135deg,#fff9f3,#f3f8fb);border:1px solid #e7ebee;border-radius:20px;padding:24px}.quote-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px}.quote-card .price{font-size:25px;font-weight:900;color:var(--deep)}.compare-center{text-align:center}.compare-center span{display:block;font-size:28px}.compare-center strong{display:block;color:var(--orange);font-size:13px}
.tip-ribbon{display:flex;gap:14px;align-items:flex-start;background:var(--yellow-soft);border:1px solid #efdf96;border-radius:16px;padding:18px 20px;margin:22px 0}.tip-ribbon .tip-icon{font-size:24px}.tip-ribbon strong{display:block}.tip-ribbon p{margin:3px 0 0;color:#6b623d;font-size:14px}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.stat-card{border-radius:16px;padding:20px;background:#f8fafb;border:1px solid var(--line)}.stat-card strong{display:block;font-size:26px;line-height:1.1;color:var(--deep)}.stat-card span{font-size:12px;color:var(--muted)}
.article .notice{box-shadow:0 5px 16px rgba(23,50,71,.04)}.article h2{border-bottom:0;position:relative;padding-left:16px}.article h2:before{content:"";position:absolute;left:0;top:.18em;width:5px;height:1.1em;border-radius:999px;background:linear-gradient(var(--orange),#ffb26a)}
.sticky-mini-cta{position:fixed;left:50%;bottom:14px;transform:translateX(-50%);z-index:25;width:min(640px,calc(100% - 24px));display:none;background:rgba(23,32,42,.95);color:#fff;border-radius:18px;padding:9px 10px 9px 16px;align-items:center;justify-content:space-between;gap:10px;box-shadow:0 12px 35px rgba(0,0,0,.2);backdrop-filter:blur(10px)}.sticky-mini-cta span{font-size:12px;font-weight:700}.sticky-mini-cta a{padding:9px 14px;background:var(--orange);color:white;text-decoration:none;border-radius:999px;font-size:12px;font-weight:800}
@media(max-width:900px){.flow-diagram{grid-template-columns:1fr 1fr}.flow-step:nth-child(2):after{display:none}.cost-row{grid-template-columns:105px 1fr 46px}.stat-grid{grid-template-columns:1fr}.compare-strip{grid-template-columns:1fr}.compare-center span{transform:rotate(90deg)}.section-title-row{display:block}.section-title-row p{margin-top:8px}.sticky-mini-cta{display:flex}}
@media(max-width:620px){.visual-panel{padding:21px 17px}.flow-diagram{grid-template-columns:1fr}.flow-step:not(:last-child):after{content:"↓";right:50%;top:auto;bottom:-21px;transform:translateX(50%)}.flow-step:nth-child(2):after{display:grid}.cost-row{grid-template-columns:82px 1fr 38px;gap:8px}.hero:before{width:230px;height:230px}.brand{font-size:16px}.sticky-mini-cta span{max-width:180px;line-height:1.35}}
/* v3 visual conversion design */
:root{--navy:#123a63;--blue:#1877c9;--orange:#f36b21;--green:#159b63;--cream:#fff9ef;--sky:#eef8ff;--ink:#172536}
body{color:var(--ink)}
.hero.v3{background:linear-gradient(115deg,#f7fbff 0%,#fff 52%,#eef8ff 100%);padding:52px 0 44px;overflow:hidden}
.hero-v3-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero.v3 h1{font-size:clamp(36px,5vw,64px);line-height:1.12;margin:10px 0 18px;letter-spacing:-.03em}.hero.v3 h1 em{font-style:normal;color:var(--orange)}
.hero-v3-copy{font-size:19px;line-height:1.8}.trust-chips{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0}.trust-chips span{background:#fff;border:1px solid #d8e5ef;border-radius:999px;padding:8px 12px;font-weight:700;font-size:13px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn.primary-v3{background:linear-gradient(135deg,var(--orange),#ff8a22);box-shadow:0 10px 24px rgba(243,107,33,.25);font-size:17px;padding:16px 24px}.btn.secondary-v3{background:#fff;color:var(--navy);border:2px solid #cdddea;padding:14px 22px}
.house-visual{position:relative;min-height:420px}.house-card{position:absolute;inset:15px 0 0 45px;background:linear-gradient(#bfe5ff 0 48%,#e7f1d7 48%);border-radius:30px;box-shadow:0 24px 60px rgba(18,58,99,.14);overflow:hidden}.sun{position:absolute;width:72px;height:72px;border-radius:50%;background:#ffd75a;right:45px;top:38px}.cloud{position:absolute;width:110px;height:36px;border-radius:30px;background:#fff;left:38px;top:58px;opacity:.9}.cloud:before,.cloud:after{content:"";position:absolute;background:#fff;border-radius:50%}.cloud:before{width:46px;height:46px;left:17px;top:-20px}.cloud:after{width:55px;height:55px;right:12px;top:-28px}.home{position:absolute;width:285px;height:185px;background:#f6f2e8;right:48px;bottom:54px;border:5px solid #fff;box-shadow:0 12px 20px rgba(0,0,0,.12)}.home:before{content:"";position:absolute;width:220px;height:220px;background:#334f68;transform:rotate(45deg);top:-115px;left:28px;z-index:-1;border-radius:4px}.door{position:absolute;width:58px;height:105px;background:#805b3e;bottom:0;left:112px}.window{position:absolute;width:58px;height:55px;background:#9ed7f3;border:5px solid #fff;top:40px}.window.w1{left:25px}.window.w2{right:25px}.grass{position:absolute;bottom:0;left:0;right:0;height:72px;background:#86c66c}.visual-badge{position:absolute;background:#fff;border-radius:18px;padding:14px 18px;box-shadow:0 12px 28px rgba(18,58,99,.18);font-weight:800}.visual-badge.b1{left:0;bottom:80px}.visual-badge.b2{right:0;top:4px;color:var(--green)}
.problem-section{padding:52px 0;background:#fff}.problem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.problem-card{border:1px solid #e2eaf0;border-radius:20px;padding:22px;background:#fff;box-shadow:0 8px 24px rgba(18,58,99,.06)}.problem-ill{height:90px;border-radius:16px;background:var(--sky);display:grid;place-items:center;font-size:44px;margin-bottom:14px}.problem-card:nth-child(2) .problem-ill{background:#fff6e8}.problem-card:nth-child(3) .problem-ill{background:#eef9f1}.problem-card:nth-child(4) .problem-ill{background:#fff0ef}
.visual-guide{padding:56px 0;background:var(--cream)}.visual-guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.guide-step{position:relative;background:#fff;padding:24px 18px;margin:0 7px;border-radius:18px;box-shadow:0 7px 20px rgba(0,0,0,.05)}.step-no{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--blue);color:#fff;font-weight:900}.guide-icon{font-size:42px;margin:20px 0 12px}.guide-step:not(:last-child):after{content:"›";position:absolute;right:-17px;top:44%;font-size:38px;color:#9eb9cf;z-index:2}
.symptoms{padding:56px 0}.symptom-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.symptom-card{border-radius:22px;overflow:hidden;border:1px solid #e2e8ee;background:#fff}.symptom-art{height:145px;position:relative}.chalk{background:linear-gradient(135deg,#e8e5dc,#c8c4b8)}.crack{background:#d8d2c7}.crack:after{content:"";position:absolute;left:48%;top:0;width:4px;height:100%;background:#665f57;transform:skew(-13deg);box-shadow:18px 35px 0 -1px #665f57,-15px 80px 0 -1px #665f57}.seal{background:repeating-linear-gradient(90deg,#d7c4a5 0 47%,#4d5961 47% 53%,#d7c4a5 53% 100%)}.symptom-body{padding:18px}.symptom-body span{display:inline-block;color:var(--orange);font-weight:800;font-size:12px;margin-bottom:5px}
@media(max-width:800px){.hero-v3-grid{grid-template-columns:1fr}.house-visual{min-height:330px}.house-card{inset:10px 0 0 20px}.home{transform:scale(.8);transform-origin:right bottom;right:18px}.problem-grid{grid-template-columns:1fr 1fr}.visual-guide-grid{grid-template-columns:1fr 1fr;gap:14px}.guide-step:not(:last-child):after{display:none}.symptom-grid{grid-template-columns:1fr}.hero.v3{padding-top:32px}}
/* v3.1 conversion polish */
.brand-v3{display:flex;align-items:center;gap:10px}.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,#f36b21,#ff9a3c);color:#fff;font-size:24px;box-shadow:0 8px 18px rgba(243,107,33,.2)}
.header-cta{display:inline-flex;align-items:center;gap:10px;padding:11px 16px;border-radius:999px;background:linear-gradient(135deg,#109c65,#17b878);color:#fff;text-decoration:none;font-size:13px;font-weight:900;box-shadow:0 8px 18px rgba(21,155,99,.18)}.header-cta span{font-size:17px}
.quick-strip{background:#fff;border-bottom:1px solid #e6edf2}.quick-strip-grid{display:grid;grid-template-columns:repeat(3,1fr);padding:16px 0}.quick-strip-grid>div{display:flex;align-items:center;gap:10px;justify-content:center;border-right:1px solid #e7edf1}.quick-strip-grid>div:last-child{border-right:0}.quick-strip strong{color:#123a63;font-size:13px}.quick-strip span{color:#5f6b76;font-size:12px}
.problem-card{text-decoration:none;color:var(--ink);transition:.18s}.problem-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(18,58,99,.1)}
.cost-visual-section{padding:62px 0;background:linear-gradient(135deg,#f8fbfd,#fffaf3)}.cost-v3{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center}.cost-v3-copy h2{font-size:clamp(28px,3.4vw,42px);line-height:1.35;margin:7px 0 14px}.cost-v3-copy p{color:#5d6974}.text-link{font-weight:900;color:#1877c9;text-decoration:none}.cost-v3-card{background:#fff;border:1px solid #e3eaf0;border-radius:26px;padding:28px;box-shadow:0 18px 45px rgba(18,58,99,.09)}.cost-v3-title{font-weight:900;font-size:18px;margin-bottom:18px}.donut{width:220px;height:220px;border-radius:50%;margin:0 auto 20px;background:conic-gradient(#f36b21 0 38%,#2d83c5 38% 62%,#36a66f 62% 82%,#e2bd4d 82% 100%);position:relative}.donut:after{content:"";position:absolute;inset:46px;background:#fff;border-radius:50%}.donut-center{position:absolute;inset:0;display:grid;place-items:center;align-content:center;text-align:center;z-index:2;color:#5d6974;line-height:1.25}.donut-center strong{font-size:28px;color:#123a63}.legend{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;margin:16px 0}.legend span{display:flex;align-items:center;gap:8px;font-size:13px;color:#46545f}.legend i{width:12px;height:12px;border-radius:50%;display:inline-block}.legend .l1{background:#f36b21}.legend .l2{background:#2d83c5}.legend .l3{background:#36a66f}.legend .l4{background:#e2bd4d}.cost-v3-card small{display:block;color:#7b8790;line-height:1.55}
.article-grid{grid-template-columns:repeat(4,1fr)}.article-card{min-height:185px}
.site-header .wrap{width:min(1220px,calc(100% - 28px))}
@media(max-width:1000px){.nav{display:none}.header-cta{margin-left:auto}.article-grid{grid-template-columns:1fr 1fr}.cost-v3{grid-template-columns:1fr}.quick-strip-grid{grid-template-columns:1fr}.quick-strip-grid>div{border-right:0;border-bottom:1px solid #edf1f4;padding:9px 0}.quick-strip-grid>div:last-child{border-bottom:0}}
@media(max-width:620px){.header-inner{height:64px}.brand small{display:none}.brand-mark{width:34px;height:34px}.header-cta{font-size:12px;padding:9px 12px}.hero-v3-copy br{display:none}.trust-chips span{font-size:12px;padding:7px 9px}.cta-row .btn{width:100%}.problem-grid{grid-template-columns:1fr 1fr;gap:10px}.problem-card{padding:14px}.problem-ill{height:70px;font-size:34px}.problem-card h3{font-size:15px;line-height:1.45}.problem-card p{font-size:12px;line-height:1.55}.article-grid{grid-template-columns:1fr}.donut{width:180px;height:180px}.donut:after{inset:38px}.legend{grid-template-columns:1fr}.cost-v3-card{padding:20px}}
/* v4 education-media redesign */
.edu-home{background:#fff}.edu-home .site-header{box-shadow:0 2px 14px rgba(18,58,99,.04)}
.edu-hero{padding:64px 0 54px;background:linear-gradient(135deg,#f7fbff 0%,#fff 58%,#fff8ef 100%);overflow:hidden}.edu-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}.edu-label{display:inline-flex;align-items:center;gap:8px;background:#eaf5ff;color:#145d98;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:900}.edu-hero h1{font-size:clamp(42px,6vw,72px);line-height:1.12;letter-spacing:-.045em;margin:18px 0}.edu-hero h1 em{font-style:normal;color:#f36b21}.edu-hero-copy>p{font-size:18px;color:#445563;max-width:650px}.edu-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 12px}.pr-note.compact{display:inline-block;margin-top:8px;font-size:11px;padding:7px 10px}.edu-house-scene{position:relative;min-height:430px}.scene-sky{position:absolute;inset:20px 10px 5px 35px;border-radius:34px;overflow:hidden;background:linear-gradient(#bfe7ff 0 58%,#dcecca 58% 100%);box-shadow:0 22px 52px rgba(18,58,99,.14)}.scene-sun{position:absolute;width:74px;height:74px;border-radius:50%;background:#ffd85e;right:45px;top:42px}.scene-cloud{position:absolute;width:96px;height:29px;border-radius:999px;background:white;opacity:.9}.scene-cloud:before,.scene-cloud:after{content:"";position:absolute;border-radius:50%;background:white}.scene-cloud:before{width:38px;height:38px;left:16px;top:-17px}.scene-cloud:after{width:46px;height:46px;right:12px;top:-24px}.scene-cloud.c1{left:35px;top:70px}.scene-cloud.c2{left:170px;top:118px;transform:scale(.75)}.scene-ground{position:absolute;left:0;right:0;bottom:0;height:86px;background:#83c56b}.scene-house{position:absolute;width:300px;height:210px;right:50px;bottom:60px}.scene-wall{position:absolute;left:28px;right:0;bottom:0;height:160px;background:#f7f0df;border:6px solid white;box-shadow:0 10px 24px rgba(0,0,0,.12)}.scene-roof{position:absolute;width:250px;height:250px;background:#3c5365;transform:rotate(45deg);right:28px;top:-74px;border-radius:4px}.scene-window{position:absolute;width:57px;height:53px;background:#97d3ef;border:5px solid white;top:38px}.scene-window.w1{left:28px}.scene-window.w2{right:28px}.scene-door{position:absolute;width:58px;height:104px;background:#835a3f;bottom:0;left:120px}.scene-note{position:absolute;background:#fff;border:1px solid #e3ebf1;border-radius:16px;padding:11px 14px;box-shadow:0 10px 24px rgba(18,58,99,.13);display:grid;line-height:1.35}.scene-note b{font-size:13px;color:#123a63}.scene-note span{font-size:11px;color:#697782}.scene-note.n1{left:0;top:16px}.scene-note.n2{right:0;top:145px}.scene-note.n3{left:20px;bottom:34px}.edu-intro{padding:26px 0;border-top:1px solid #edf1f4;border-bottom:1px solid #edf1f4}.edu-intro-lead{font-size:18px;text-align:center;margin:0;color:#40505d}.edu-roadmap{padding:72px 0;background:#fff}.roadmap-line{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative}.roadmap-line:before{content:"";position:absolute;left:10%;right:10%;top:48px;height:3px;background:linear-gradient(90deg,#5ab3e8,#59c593,#f6b75b,#f1875d);z-index:0}.road-card{position:relative;z-index:1;text-decoration:none;color:var(--ink);background:#fff;border:1px solid #e0e8ee;border-radius:22px;padding:20px 18px 22px;box-shadow:0 9px 28px rgba(18,58,99,.06);transition:.18s}.road-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(18,58,99,.11)}.road-no{font-size:12px;font-weight:900;color:#8293a2}.road-icon{width:58px;height:58px;border-radius:18px;display:grid;place-items:center;font-size:25px;font-weight:900;margin:8px 0 16px;background:#eaf6ff;color:#1877c9}.rc2 .road-icon{background:#eef9f3;color:#159b63}.rc3 .road-icon{background:#fff5e7;color:#e28b16}.rc4 .road-icon{background:#fff0ec;color:#e55b35}.road-card small{font-size:11px;font-weight:900;color:#789}.road-card h3{font-size:20px;margin:3px 0 8px}.road-card p{font-size:13px;color:#63717c;line-height:1.65}.road-card b{font-size:13px;color:#186da8}.edu-lesson{padding:72px 0;background:#f6fafc}.edu-lesson-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}.lesson-visual{min-height:390px;position:relative}.estimate-sheet{position:absolute;width:310px;right:25px;top:40px;background:#fff;border:1px solid #dfe7ec;border-radius:14px;padding:22px;box-shadow:0 20px 50px rgba(18,58,99,.12);transform:rotate(2deg)}.est-head{font-weight:900;border-bottom:3px solid #1d5d8a;padding-bottom:12px;margin-bottom:10px}.est-line{display:grid;grid-template-columns:80px 1fr;gap:15px;align-items:center;padding:10px 0;border-bottom:1px solid #e8edf0;font-size:13px}.est-line i{height:7px;border-radius:999px;background:#dce5eb}.est-line.hot i{background:linear-gradient(90deg,#f36b21 0 72%,#ffe2cf 72%)}.est-total{margin-top:14px;background:#fff0e6;color:#d75511;font-weight:900;text-align:center;border-radius:9px;padding:9px}.quote-bubble{position:absolute;left:0;top:0;background:#123a63;color:#fff;padding:18px 20px;border-radius:18px;font-weight:900;line-height:1.5;z-index:2;box-shadow:0 12px 30px rgba(18,58,99,.18)}.quote-bubble:after{content:"";position:absolute;right:28px;bottom:-12px;border:12px solid transparent;border-top-color:#123a63;border-bottom:0}.lesson-copy h2{font-size:clamp(30px,4vw,44px);line-height:1.35;margin:8px 0 15px}.lesson-copy p{color:#5c6974}.lesson-points{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:22px 0}.lesson-points span{background:#fff;border:1px solid #dfe8ee;border-radius:12px;padding:10px 12px;font-weight:800;color:#36566e}.edu-topics{padding:72px 0}.topic-groups{display:grid;grid-template-columns:1fr 1fr;gap:18px}.topic-group{border:1px solid #e1e8ed;border-radius:22px;padding:22px;background:#fff;box-shadow:0 8px 24px rgba(18,58,99,.04)}.topic-head{display:flex;gap:15px;align-items:center;padding-bottom:14px;border-bottom:1px solid #edf1f4;margin-bottom:5px}.topic-head>span{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:#eaf6ff;color:#1978c3;font-weight:900}.topic-head small{font-size:11px;color:#7a8994;font-weight:900}.topic-head h3{font-size:18px;margin:0}.topic-group>a{display:block;text-decoration:none;color:#314a5d;padding:12px 2px;border-bottom:1px dashed #e4e9ed;font-weight:700}.topic-group>a:last-child{border-bottom:0}.topic-group>a:after{content:"→";float:right;color:#8fa2af}.tg-est .topic-head>span{background:#eef9f3;color:#159b63}.tg-wall .topic-head>span{background:#fff5e8;color:#da8a18}.tg-company .topic-head>span{background:#fff0ec;color:#e15f3b}.edu-symptoms{padding:72px 0;background:#fbfcfd}.hand-mark{position:absolute;left:50%;top:55%;transform:translate(-50%,-50%);font-size:54px}.edu-compare-gate{padding:72px 0}.compare-gate-card{background:linear-gradient(135deg,#103b63,#175a8c);color:#fff;border-radius:28px;padding:34px 38px;display:grid;grid-template-columns:1.3fr .9fr auto;gap:28px;align-items:center;box-shadow:0 18px 48px rgba(18,58,99,.2)}.compare-gate-card h2{margin:6px 0 8px;font-size:30px}.compare-gate-card p{margin:0;color:#dbeaf5}.gate-step{display:inline-block;background:#fff2c9;color:#8f6815;border-radius:999px;padding:5px 10px;font-size:11px;font-weight:900}.gate-flow{display:flex;align-items:center;justify-content:center;gap:9px;white-space:nowrap}.gate-flow span,.gate-flow strong{padding:8px 11px;border-radius:999px;background:rgba(255,255,255,.12)}.gate-flow strong{background:#fff;color:#123a63}.compare-gate-card .btn{white-space:nowrap}
/* article learning UX */
.article{font-size:17px}.article>h1{font-size:clamp(34px,5vw,52px);line-height:1.28;letter-spacing:-.025em}.article .lead{background:#f7fbfe;border-left:5px solid #2d83c5;border-radius:0 16px 16px 0;padding:20px 22px;font-size:18px}.article>h2{font-size:28px;margin-top:2.2em;padding-top:.1em;position:relative}.article>h2:before{content:"";display:inline-block;width:7px;height:1.05em;border-radius:8px;background:linear-gradient(#2d83c5,#55b7e7);vertical-align:-.14em;margin-right:10px}.article ol,.article ul{padding-left:1.35em}.article li{margin:.5em 0}.learning-summary{border:1px solid #dbe7ef;background:linear-gradient(135deg,#f5fbff,#fff);border-radius:18px;padding:20px 22px;margin:24px 0}.learning-summary strong{display:block;color:#125b90;margin-bottom:8px}.learning-summary ul{margin:0}.edu-diagram{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:24px 0}.edu-diagram>div{background:#fff;border:1px solid #dfe7ec;border-radius:16px;padding:15px;text-align:center}.edu-diagram b{display:block;font-size:14px;color:#184e75;margin-bottom:5px}.edu-diagram span{font-size:12px;color:#6e7c86}.article .cta-box{margin-top:42px;background:linear-gradient(135deg,#f2f8fc,#fff8f1);border:1px solid #dae6ee}.article .cta-box:before{content:"ここまで読んだら";display:inline-block;background:#123a63;color:#fff;border-radius:999px;padding:5px 10px;font-size:11px;font-weight:900;margin-bottom:8px}.article .source-box{margin-top:32px}
@media(max-width:950px){.edu-hero-grid,.edu-lesson-grid{grid-template-columns:1fr}.edu-house-scene{min-height:350px}.roadmap-line{grid-template-columns:1fr 1fr}.roadmap-line:before{display:none}.compare-gate-card{grid-template-columns:1fr}.topic-groups{grid-template-columns:1fr}}
@media(max-width:620px){.edu-hero{padding:34px 0 38px}.edu-hero h1{font-size:43px}.edu-hero-copy>p{font-size:16px}.edu-house-scene{min-height:300px}.scene-house{transform:scale(.78);transform-origin:right bottom;right:20px}.scene-note.n2{top:110px}.scene-note.n3{bottom:20px}.edu-intro-lead{font-size:15px;text-align:left}.roadmap-line{grid-template-columns:1fr}.road-card{display:grid;grid-template-columns:60px 1fr;column-gap:12px}.road-no{grid-column:1}.road-icon{grid-column:1;grid-row:2;margin:0}.road-card>div:last-child{grid-column:2;grid-row:1/3}.lesson-visual{min-height:320px}.estimate-sheet{width:250px;right:0}.quote-bubble{font-size:13px}.lesson-points{grid-template-columns:1fr}.edu-roadmap,.edu-lesson,.edu-topics,.edu-symptoms,.edu-compare-gate{padding:48px 0}.compare-gate-card{padding:25px 20px}.gate-flow{justify-content:flex-start;font-size:12px}.edu-diagram{grid-template-columns:1fr}.article>h1{font-size:34px}.article>h2{font-size:24px}}
/* v5 educational media */
.ad-disclosure{font-size:12px;color:#5e6570;background:#fff6ef;border-bottom:1px solid #f2e1d5;padding:8px 18px;text-align:center}.v5brand{display:flex;align-items:center;gap:10px}.brand-house{width:44px;height:44px;border-radius:12px;background:#f47a2d;color:white;display:grid;place-items:center;font-size:23px}.v5hero{background:linear-gradient(135deg,#f4f9ff,#fff 68%);padding:48px 0 30px}.v5hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center}.hero-chip{display:inline-block;background:#eaf5ff;color:#145d98;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:800}.v5hero h1{font-size:clamp(44px,6vw,72px);line-height:1.12;margin:18px 0;letter-spacing:-.04em}.v5hero h1 em{font-style:normal;color:#f36b21}.v5hero p{font-size:18px;color:#445563}.hero-house svg{width:100%;filter:drop-shadow(0 20px 30px rgba(31,68,96,.12))}.hero-navcards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:30px}.hero-navcards a{text-decoration:none;color:#17304b;background:#fff;border:1px solid #dce7ef;border-radius:16px;padding:18px;text-align:center;box-shadow:0 8px 24px rgba(18,58,99,.06)}.hero-navcards span{display:block;font-size:28px;color:#155b91}.hero-navcards b,.hero-navcards small{display:block}.hero-navcards small{color:#71808d;font-size:12px}.v5road,.v5sym,.v5popular,.soft-gate{padding:62px 0}.v5road h2,.v5sym h2,.v5popular h2{text-align:center;font-size:30px}.section-lead{text-align:center;color:#6b7883;max-width:760px;margin:0 auto 28px}.steps4{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid #dce7ef;border-radius:20px;overflow:hidden;background:#fff}.steps4 a{text-decoration:none;color:#17304b;padding:22px 18px;text-align:center;border-right:1px solid #e4ecf1}.steps4 a:last-child{border:0}.steps4 i{display:grid;width:38px;height:38px;border-radius:50%;background:#174e7d;color:#fff;place-items:center;font-style:normal;font-weight:900;margin:0 auto 12px}.steps4 a:last-child i{background:#f36b21}.steps4 b,.steps4 small{display:block}.steps4 small{color:#72808c}.v5sym{background:#fbfcfd}.sym6{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.sym6>a{text-decoration:none;color:#17304b;background:#fff;border:1px solid #dfe7ed;border-radius:18px;overflow:hidden;box-shadow:0 8px 24px rgba(18,58,99,.05)}.sym6 b,.sym6 small{display:block;padding:0 14px}.sym6 b{margin-top:12px}.sym6 small{padding-bottom:16px;color:#6e7c87}.photo{height:150px;position:relative;overflow:hidden;background:#d8d2c4}.chalk-real{background:linear-gradient(30deg,#cfc7b7,#e9e4da)}.chalk-real span{position:absolute;left:42%;top:35%;font-size:54px;filter:grayscale(.2)}.haircrack,.deepcrack,.jointcrack{background:linear-gradient(100deg,#d5cfc0,#e8e3d9)}.haircrack i,.deepcrack i{position:absolute;width:3px;background:#5c554b;transform:rotate(12deg);border-radius:3px}.haircrack i:nth-child(1){height:105px;left:45%;top:22px}.haircrack i:nth-child(2){height:55px;left:53%;top:68px;transform:rotate(-18deg)}.haircrack i:nth-child(3){height:38px;left:40%;top:92px;transform:rotate(40deg)}.deepcrack i:nth-child(1){height:150px;width:5px;left:48%;top:0;transform:rotate(7deg)}.deepcrack i:nth-child(2){height:70px;width:4px;left:39%;top:68px;transform:rotate(-25deg)}.jointcrack:before{content:"";position:absolute;left:47%;top:0;bottom:0;width:26px;background:#59636d}.jointcrack i{position:absolute;left:47%;top:34px;width:26px;height:5px;background:#222;transform:rotate(12deg)}.peel{background:linear-gradient(135deg,#d9d1c0,#eee8db)}.peel i{position:absolute;background:#f8f4ea;border:1px solid #a89e8d;transform:rotate(-8deg)}.peel i:nth-child(1){width:90px;height:55px;left:30%;top:40px}.peel i:nth-child(2){width:55px;height:35px;left:55%;top:88px}.moss{background:linear-gradient(135deg,#d6d1c4,#c9c4b7)}.moss i{position:absolute;inset:28px 35px;background:radial-gradient(circle at 30% 40%,#68885e 0 8%,transparent 9%),radial-gradient(circle at 60% 45%,#4d7452 0 13%,transparent 14%),radial-gradient(circle at 50% 70%,#79976b 0 15%,transparent 16%)}.popular-list{max-width:860px;margin:auto}.popular-list a{display:grid;grid-template-columns:72px 1fr 30px;gap:15px;align-items:center;text-decoration:none;color:#17304b;padding:14px 0;border-bottom:1px solid #e6ebef}.popular-list small{display:block;color:#f36b21;font-weight:800}.thumb{width:72px;height:58px;border-radius:10px;display:grid;place-items:center;background:#eaf5ff;font-size:28px}.sheet-thumb{background:#fff1e8}.people-thumb{background:#eef8f2}.soft-gate-card{max-width:880px;margin:auto;background:#fffaf4;border:1px solid #f2dfc9;border-radius:22px;padding:30px;text-align:center}.soft-gate-card h2{font-size:24px}.v5article{max-width:860px;padding-top:34px;padding-bottom:70px}.breadcrumbs{font-size:12px;color:#72808c;margin-bottom:18px}.crack-types{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.crack-types>div{border:1px solid #dfe7ec;border-radius:14px;padding:12px}.crack-types b,.crack-types small{display:block}.crack-types small{color:#6b7883}.miniwall{height:120px;margin-bottom:10px;position:relative;overflow:hidden}.damage-flow{display:flex;align-items:center;gap:10px;margin:20px 0}.damage-flow>div{flex:1;border:1px solid #dfe7ec;border-radius:14px;padding:16px;text-align:center}.damage-flow span{display:grid;width:32px;height:32px;border-radius:50%;background:#174e7d;color:#fff;place-items:center;margin:0 auto 8px}.note{background:#fff8e8;border:1px solid #f0dfaf;border-radius:12px;padding:14px}.estimate-real{border:1px solid #dfe6eb;border-radius:14px;overflow:hidden}.er-title{padding:12px;text-align:center;font-weight:900}.er-row{display:grid;grid-template-columns:1fr 2fr 1fr 1fr;border-top:1px solid #e6ebef}.er-row span{padding:10px;font-size:12px;border-right:1px solid #e6ebef}.er-row.head{background:#f4f7f9;font-weight:900}.er-row.focus{outline:3px solid #f36b21;outline-offset:-3px;background:#fff6ef}.check3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}.check3>div{background:#f8fbfd;border-radius:12px;padding:14px}.check3 i{display:inline-grid;width:26px;height:26px;border-radius:50%;place-items:center;background:#f36b21;color:white;font-style:normal}.check3 b,.check3 small{display:block}.check3 small{color:#6b7883}
@media(max-width:760px){.nav{display:none}.header-inner{height:66px}.v5hero{padding:32px 0 20px}.v5hero-grid{grid-template-columns:1fr}.hero-house{order:-1}.v5hero h1{font-size:44px}.v5hero p{font-size:16px}.hero-navcards{grid-template-columns:repeat(2,1fr)}.steps4{grid-template-columns:1fr 1fr}.steps4 a:nth-child(2){border-right:0}.steps4 a{border-bottom:1px solid #e4ecf1}.sym6{grid-template-columns:1fr 1fr}.photo{height:130px}.crack-types{grid-template-columns:1fr}.damage-flow{display:grid;grid-template-columns:1fr}.damage-flow>i{transform:rotate(90deg);text-align:center}.check3{grid-template-columns:1fr}.ad-disclosure{text-align:left;font-size:11px}.v5brand small{font-size:9px}.hero-house svg{max-height:240px}}
/* v5.1 deploy-safe overrides */
.build-marker{position:fixed;right:8px;bottom:8px;z-index:99;background:#0f3154;color:#fff;border-radius:999px;padding:4px 8px;font-size:9px;opacity:.72;pointer-events:none}
.v5hero{background:linear-gradient(135deg,#eef8ff 0%,#fff 58%,#fff7f0 100%)}
.v5hero h1 em{color:#f26a21}
@media(max-width:760px){
  .ad-disclosure{padding:6px 14px;background:#fff8f2;color:#5d6670;border-bottom:1px solid #f1e5dc;white-space:normal}
  .hero-house{order:2;margin-top:4px}
  .v5hero-grid{gap:12px}
  .v5hero h1{font-size:42px;margin:14px 0 12px}
  .hero-navcards{margin-top:18px}
}


/* === v6.1 trust-first overrides === */
:root{
  --v61-navy:#16324f;
  --v61-blue:#2f6690;
  --v61-bg:#f5f8fa;
  --v61-line:#dbe5ec;
  --v61-muted:#617385;
  --v61-accent:#d97832;
}
body{background:var(--v61-bg);color:#1b2c3e;}
a{color:var(--v61-blue);}
.site-header{background:#fff;border-bottom:1px solid var(--v61-line);}
.brand-mark,.brand-icon{background:var(--v61-navy)!important;box-shadow:none!important;}
.pr-bar{background:#f6f8fa!important;border-color:#e2e8ed!important;color:#536575!important;}
.v5hero{background:linear-gradient(135deg,#f8fbfd 0%,#eef5fa 100%)!important;}
.v5hero h1,.section-title,.site-footer h4{color:var(--v61-navy)!important;}
.v5hero h1 em{color:var(--v61-accent)!important;font-style:normal;}
.hero-chip{background:#eaf2f8!important;color:var(--v61-blue)!important;}
.primary-v3{background:var(--v61-navy)!important;box-shadow:0 10px 24px rgba(22,50,79,.16)!important;}
.hero-question-panel{background:#fff;border:1px solid var(--v61-line);border-radius:28px;padding:26px;box-shadow:0 18px 50px rgba(22,50,79,.09);align-self:center;}
.hq-label{font-weight:800;color:var(--v61-navy);font-size:1.05rem;margin-bottom:14px;}
.hero-question-panel ul{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.hero-question-panel li{display:grid;grid-template-columns:62px 1fr;gap:12px;align-items:center;padding:14px 15px;border-radius:16px;background:#f7fafc;border:1px solid #e3ebf1;}
.hero-question-panel strong{display:inline-flex;align-items:center;justify-content:center;background:#e8f1f7;color:var(--v61-navy);border-radius:999px;padding:7px 8px;font-size:.88rem;}
.hero-question-panel span{color:#415568;line-height:1.5;font-weight:600;}
.learn-card,.topic-card,.symptom-card,.article-card{border-color:var(--v61-line)!important;box-shadow:0 8px 24px rgba(22,50,79,.06)!important;}
.learn-card:hover,.topic-card:hover,.article-card:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(22,50,79,.10)!important;}
/* Hide crude illustration areas on symptom cards: keep them as clean editorial cards */
.symptom-art{display:none!important;}
.symptom-card{background:#fff!important;min-height:0!important;}
.symptom-card .symptom-body{padding-top:22px!important;}
.symptom-card .symptom-body:before{content:'状態を確認';display:inline-block;margin-bottom:10px;padding:5px 9px;border-radius:999px;background:#edf4f8;color:var(--v61-blue);font-size:.76rem;font-weight:700;}
.build-marker{display:none!important;}
.site-footer{background:var(--v61-navy)!important;}
@media(max-width:720px){
  .v5hero-grid{grid-template-columns:1fr!important;gap:22px!important;}
  .hero-question-panel{padding:18px;border-radius:20px;}
  .hero-question-panel li{grid-template-columns:54px 1fr;padding:12px;}
  .v5hero h1{font-size:clamp(2.35rem,12vw,4rem)!important;line-height:1.08!important;}
  .v5hero p{font-size:1.02rem!important;line-height:1.9!important;}
}

/* v6.2 mobile readability + trust polish */
:root{
  --trust-navy:#173b5f;
  --trust-blue:#2f6690;
  --trust-bg:#f6f9fb;
  --trust-line:#dbe6ee;
  --trust-accent:#d97832;
}
.v5hero h1 em{white-space:nowrap}
.hero-question-panel{background:#fff;border:1px solid var(--trust-line);border-radius:20px;padding:22px;box-shadow:0 10px 28px rgba(23,59,95,.06)}
.hero-question-panel .hq-label{font-weight:900;color:var(--trust-navy);font-size:20px;margin-bottom:12px}
.hero-question-panel ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.hero-question-panel li{display:grid;grid-template-columns:62px 1fr;gap:10px;align-items:center;background:#f7fafc;border:1px solid #e5edf3;border-radius:14px;padding:12px}
.hero-question-panel li strong{color:var(--trust-navy);text-align:center;background:#e9f2f8;border-radius:999px;padding:7px 6px}
.hero-question-panel li span{color:#4f6170;font-weight:700}
.v5road .steps4 a:last-child i{background:#174e7d}
.v5hero,.v5road,.v5popular{background-color:#fff}
.site-header{background:#fff}
.ad-disclosure{background:#f5f8fa;color:#536575;border-color:#e2e9ee}
.soft-gate-card{background:#f3f7fa;border-color:#dce7ef}
.soft-gate-card .btn{background:var(--trust-navy)}
@media(max-width:620px){
  .v5hero{padding:30px 0 22px}
  .v5hero-grid{gap:22px}
  .v5hero h1{font-size:40px;line-height:1.12;letter-spacing:-.05em;margin:16px 0}
  .v5hero h1 em{white-space:normal}
  .v5hero p{font-size:16px;line-height:1.9}
  .hero-chip{font-size:12px}
  .hero-actions .btn{font-size:16px;padding:15px 20px}
  .hero-question-panel{padding:18px}
  .hero-question-panel .hq-label{font-size:18px}
  .hero-question-panel li{grid-template-columns:54px 1fr;padding:10px}
  .hero-question-panel li strong{font-size:12px}
  .hero-question-panel li span{font-size:14px}
  .hero-navcards{grid-template-columns:1fr 1fr;gap:10px;margin-top:22px}
  .hero-navcards a{padding:15px 10px}
  .hero-navcards span{font-size:24px}
  .hero-navcards b{font-size:14px;line-height:1.45}
  .hero-navcards small{font-size:11px;line-height:1.5}
  .v5road,.v5sym,.v5popular,.soft-gate{padding:42px 0}
  .v5road h2,.v5sym h2,.v5popular h2{font-size:27px;line-height:1.35}
  .steps4{grid-template-columns:1fr 1fr}
  .steps4 a{border-right:1px solid #e4ecf1;border-bottom:1px solid #e4ecf1;padding:18px 12px}
  .steps4 a:nth-child(2n){border-right:0}
  .steps4 a:nth-last-child(-n+2){border-bottom:0}
  .sym6{grid-template-columns:1fr 1fr;gap:12px}
  .photo{height:112px}
  .popular-list a{grid-template-columns:62px 1fr 22px;gap:11px}
  .thumb{width:62px;height:52px}
  .soft-gate-card{padding:23px 18px}
  .soft-gate-card h2{font-size:21px;line-height:1.5}
}


@media(max-width:370px){
  .v5hero h1{font-size:36px}
}

/* v6.3 article quality */
.article-answer{background:#f2f7fb;border-left:5px solid #2f6690;border-radius:14px;padding:18px 20px;margin:24px 0}
.article-answer h2{margin:0 0 10px;font-size:1.15rem;color:#173b5f}
.article-answer ul{margin:0;padding-left:1.2em;line-height:1.9}
.article-practical{background:#fff;border:1px solid #dce7ef;border-radius:18px;padding:22px;margin:30px 0}
.article-practical h2{margin-top:0;color:#173b5f}
.editorial-note{background:#fbfcfd;border:1px solid #e3e9ee;border-radius:14px;padding:16px 18px;margin:28px 0;color:#526574;font-size:.94rem;line-height:1.8}
.source-box{border-top:1px solid #dfe7ec;margin-top:38px;padding-top:22px}
.source-box h2{font-size:1.1rem;color:#173b5f}
.source-box ul{padding-left:1.2em}
.source-box li{margin:.6em 0;line-height:1.65}
.source-box a{color:#245f8d}
.related-box{background:#f6f9fb;border-radius:16px;padding:20px;margin:30px 0}
.related-box h2{margin-top:0;font-size:1.1rem}
.related-box a{font-weight:700}

/* v6.4 — intentional mobile typography + no fake/cheap symptom drawings */
.v5hero h1 .hero-title-line{display:block;white-space:nowrap}
.v5hero h1 .hero-title-accent{color:#d97832}
.symptom-visual{
  height:118px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,#f3f6f8,#e9eff3);
  border-bottom:1px solid #dce6ed;
}
.symptom-visual-label{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:96px;padding:10px 16px;border-radius:999px;
  background:#fff;border:1px solid #d5e1e9;color:#31536d;
  font-size:13px;font-weight:800;letter-spacing:.04em;
  box-shadow:0 5px 16px rgba(23,59,95,.06);
}
@media(max-width:620px){
  .v5hero h1{font-size:36px!important;line-height:1.18!important;letter-spacing:-.045em!important}
  .v5hero h1 .hero-title-line{white-space:nowrap}
  .symptom-visual{height:94px}
  .sym6 b,.sym6 h3,.sym6 strong{font-size:15px!important;line-height:1.45!important}
  .sym6 small,.sym6 p{font-size:12px!important;line-height:1.55!important}
}
@media(max-width:390px){
  .v5hero h1{font-size:33px!important}
}


/* v7 current design */

:root{
  --navy:#0d3559;
  --navy2:#153f64;
  --blue:#2e668e;
  --orange:#e97828;
  --ink:#19344e;
  --muted:#667b8e;
  --line:#dbe5ec;
  --soft:#f4f8fb;
  --white:#fff;
  --shadow:0 12px 30px rgba(13,53,89,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.adbar{border-bottom:1px solid var(--line);background:#f7fafc;color:#4c6173;font-size:13px}
.adbar .container{padding:9px 0;display:flex;gap:8px;align-items:center}
.info-dot{width:17px;height:17px;border-radius:50%;background:var(--navy);color:#fff;display:inline-grid;place-items:center;font-weight:800;font-size:11px}
.header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.header-row{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;min-width:240px}
.brand-mark{width:44px;height:44px;color:var(--navy)}
.brand-name{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-weight:800;letter-spacing:.12em;font-size:21px;line-height:1.15}
.brand-sub{display:block;font-family:-apple-system,BlinkMacSystemFont,"Yu Gothic",sans-serif;font-size:10px;letter-spacing:.04em;color:#607587;margin-top:4px}
.nav{display:flex;align-items:center;gap:30px;font-size:13px;font-weight:700;white-space:nowrap}
.nav a:hover{color:var(--blue)}
.search-icon{width:22px;height:22px;color:var(--navy)}
.mobile-nav{display:none}

.hero{position:relative;overflow:hidden;background:#eaf4fb;min-height:580px}
.hero-bg{position:absolute;inset:0 0 0 43%;background-image:linear-gradient(90deg,rgba(234,244,251,.9),rgba(234,244,251,.05) 25%),url('https://images.pexels.com/photos/35675001/pexels-photo-35675001.jpeg?auto=compress&cs=tinysrgb&w=1800');background-size:cover;background-position:center}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#fff 0%,rgba(255,255,255,.96) 30%,rgba(255,255,255,.66) 47%,rgba(255,255,255,0) 66%)}
.hero-inner{position:relative;z-index:2;padding:46px 0 28px}
.hero-copy{max-width:620px}
.eyebrow{font-weight:800;color:var(--blue);font-size:14px;letter-spacing:.06em;margin-bottom:12px}
.hero h1{margin:0;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;color:var(--navy);font-size:58px;line-height:1.24;letter-spacing:.035em}
.hero h1 span{display:block}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero-lead{font-size:17px;line-height:2.05;margin:22px 0 0;max-width:520px}
.hero-cards{position:relative;z-index:3;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:30px}
.hero-card{background:rgba(255,255,255,.96);border:1px solid rgba(215,227,236,.9);border-radius:15px;min-height:188px;padding:20px 18px 16px;text-align:center;box-shadow:var(--shadow);transition:.2s transform,.2s box-shadow}
.hero-card:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(13,53,89,.13)}
.card-icon{width:53px;height:53px;border-radius:50%;background:#eef5fa;color:var(--navy);margin:0 auto 12px;display:grid;place-items:center}
.card-icon svg{width:30px;height:30px}
.hero-card b{display:block;font-size:16px;margin-bottom:6px}
.hero-card small{display:block;color:#617789;font-size:12px;line-height:1.65}
.arrow{display:block;margin-top:10px;font-weight:900;color:var(--navy)}

.section{padding:38px 0 42px}
.section + .section{border-top:1px solid #eef2f5}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:18px}
.section-title{margin:0;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;color:var(--navy);font-size:27px;letter-spacing:.04em}
.section-title .mini-icon{display:inline-block;margin-right:9px;font-family:inherit}
.more{font-size:13px;color:var(--navy);font-weight:800}
.symptoms{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.symptom{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden;box-shadow:0 5px 18px rgba(13,53,89,.045);transition:.2s}
.symptom:hover{transform:translateY(-2px)}
.symptom-photo{height:142px;background:#dce4e9;background-size:cover;background-position:center}
.symptom-copy{padding:12px 12px 14px;position:relative;min-height:92px}
.symptom-copy b{display:block;font-size:14px;color:var(--navy);margin-bottom:4px}
.symptom-copy small{color:#687d8e;font-size:11px;line-height:1.55}
.symptom-copy .chev{position:absolute;right:10px;top:17px;color:var(--navy);font-weight:900}

.chalking .symptom-photo{background-image:linear-gradient(rgba(255,255,255,.1),rgba(255,255,255,.1)),url('https://images.pexels.com/photos/11618040/pexels-photo-11618040.jpeg?auto=compress&cs=tinysrgb&w=900');background-position:12% 44%}
.hairline .symptom-photo{background-image:url('https://images.pexels.com/photos/7717787/pexels-photo-7717787.jpeg?auto=compress&cs=tinysrgb&w=900');background-position:center}
.bigcrack .symptom-photo{background-image:url('https://images.pexels.com/photos/7717787/pexels-photo-7717787.jpeg?auto=compress&cs=tinysrgb&w=900');background-position:68% center;filter:contrast(1.08)}
.seal .symptom-photo{background-image:url('https://images.pexels.com/photos/7717787/pexels-photo-7717787.jpeg?auto=compress&cs=tinysrgb&w=900');background-position:20% center;filter:grayscale(.5) contrast(1.25)}
.peeling .symptom-photo{background-image:url('https://images.pexels.com/photos/11618040/pexels-photo-11618040.jpeg?auto=compress&cs=tinysrgb&w=900');background-position:center}
.moss .symptom-photo{background-image:url('https://images.pexels.com/photos/11798145/pexels-photo-11798145.jpeg?auto=compress&cs=tinysrgb&w=900');background-position:center}

.popular{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.article-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 5px 18px rgba(13,53,89,.05)}
.article-thumb{height:145px;background-size:cover;background-position:center;position:relative}
.article-tag{position:absolute;left:10px;top:10px;background:var(--navy);color:#fff;padding:4px 9px;border-radius:999px;font-size:10px;font-weight:800}
.article-body{padding:13px 14px 15px}
.article-body b{display:block;color:var(--navy);font-size:14px;line-height:1.55}
.article-body small{display:block;color:#687c8d;font-size:11px;line-height:1.6;margin-top:6px}
.thumb-house{background-image:url('https://images.pexels.com/photos/35675001/pexels-photo-35675001.jpeg?auto=compress&cs=tinysrgb&w=1800')}
.thumb-estimate{background-image:linear-gradient(135deg,rgba(13,53,89,.08),rgba(255,255,255,.18)),url('https://images.pexels.com/photos/11618040/pexels-photo-11618040.jpeg?auto=compress&cs=tinysrgb&w=900')}
.thumb-trust{background-image:url('https://images.pexels.com/photos/8847212/pexels-photo-8847212.jpeg?auto=compress&cs=tinysrgb&w=1200')}
.thumb-paint{background-image:url('https://images.pexels.com/photos/5691611/pexels-photo-5691611.jpeg?auto=compress&cs=tinysrgb&w=1200')}

.compare{padding:16px 0 44px}
.compare-box{background:linear-gradient(120deg,#edf6fc,#f8fbfd);border:1px solid #d7e7f2;border-radius:15px;padding:22px 26px;display:grid;grid-template-columns:1fr 360px;gap:25px;align-items:center}
.compare-copy{display:grid;grid-template-columns:72px 1fr;gap:18px;align-items:center}
.compare-icon{width:72px;height:72px;border:3px solid var(--navy);border-radius:18px;display:grid;place-items:center;color:var(--navy)}
.compare-icon svg{width:40px}
.compare h2{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;color:var(--navy);font-size:25px;line-height:1.45;margin:0 0 4px}
.compare p{margin:0;color:#5d7384;font-size:13px}
.compare-action{text-align:center;border:1px solid #d5e3ed;border-radius:14px;background:rgba(255,255,255,.65);padding:13px 18px}
.compare-action small{display:block;color:#5c7283;font-size:11px;margin-bottom:8px}
.cta{display:flex;align-items:center;justify-content:center;gap:12px;background:var(--navy);color:#fff;border-radius:999px;padding:13px 18px;font-weight:800;box-shadow:0 8px 18px rgba(13,53,89,.18)}
.compare-note{font-size:10px;color:#657a8a;margin-top:7px}

.footer{background:var(--navy);color:#fff;padding:26px 0}
.footer-row{display:flex;justify-content:space-between;align-items:center;gap:20px}
.footer-links{display:flex;gap:26px;flex-wrap:wrap;font-size:12px}
.copyright{font-size:11px;opacity:.85}

@media(max-width:900px){
  .nav{display:none}
  .mobile-nav{display:block;color:var(--navy);font-size:13px;font-weight:800}
  .header-row{min-height:68px}
  .brand{min-width:0}
  .hero{min-height:auto}
  .hero-bg{inset:0;background-position:66% center}
  .hero::after{background:linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.88) 55%,rgba(255,255,255,.28) 100%)}
  .hero-inner{padding:35px 0 25px}
  .hero h1{font-size:47px}
  .hero-cards{grid-template-columns:repeat(2,1fr)}
  .symptoms{grid-template-columns:repeat(3,1fr)}
  .popular{grid-template-columns:repeat(2,1fr)}
  .compare-box{grid-template-columns:1fr}
}
@media(max-width:620px){
  .container{width:min(100% - 28px,1180px)}
  .adbar{font-size:11px}
  .brand-name{font-size:18px}
  .brand-sub{font-size:9px}
  .brand-mark{width:38px;height:38px}
  .hero{background:#f2f8fc}
  .hero-bg{inset:0;background-position:62% center;opacity:.48}
  .hero::after{background:linear-gradient(180deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.86) 53%,rgba(255,255,255,.55) 100%)}
  .hero-inner{padding:30px 0 18px}
  .eyebrow{font-size:12px}
  .hero h1{font-size:38px;line-height:1.27;letter-spacing:.015em}
  .hero h1 span{white-space:nowrap}
  .hero-lead{font-size:14px;line-height:1.9;margin-top:15px;max-width:94%}
  .hero-cards{grid-template-columns:1fr 1fr;gap:9px;margin-top:22px}
  .hero-card{min-height:154px;padding:15px 10px 12px;border-radius:13px}
  .card-icon{width:43px;height:43px;margin-bottom:8px}
  .card-icon svg{width:24px;height:24px}
  .hero-card b{font-size:13px;line-height:1.45}
  .hero-card small{font-size:10px;line-height:1.5}
  .arrow{margin-top:6px}
  .section{padding:30px 0 34px}
  .section-head{align-items:center;margin-bottom:14px}
  .section-title{font-size:22px;line-height:1.4}
  .more{font-size:11px}
  .symptoms{grid-template-columns:1fr 1fr;gap:10px}
  .symptom-photo{height:118px}
  .symptom-copy{padding:10px 10px 12px;min-height:84px}
  .symptom-copy b{font-size:13px;line-height:1.45;padding-right:12px}
  .symptom-copy small{font-size:10px}
  .popular{grid-template-columns:1fr 1fr;gap:10px}
  .article-thumb{height:105px}
  .article-body{padding:10px 11px 12px}
  .article-body b{font-size:12px;line-height:1.5}
  .article-body small{font-size:9px}
  .compare{padding-bottom:30px}
  .compare-box{padding:18px 16px;border-radius:14px}
  .compare-copy{grid-template-columns:48px 1fr;gap:12px}
  .compare-icon{width:48px;height:48px;border-radius:12px;border-width:2px}
  .compare-icon svg{width:28px}
  .compare h2{font-size:19px}
  .compare p{font-size:11px}
  .cta{font-size:13px;padding:12px}
  .footer-row{display:block}
  .footer-links{gap:13px 18px;margin-bottom:15px}
}

/* v7.1 — accurate visuals + mobile polish */
.chalking .symptom-photo{
  background-image:url('https://upload.wikimedia.org/wikipedia/commons/1/17/Paint_chalking.jpg') !important;
  background-position:52% 72% !important;
}
.hairline .symptom-photo{
  background-image:url('https://images.pexels.com/photos/7717787/pexels-photo-7717787.jpeg?auto=compress&cs=tinysrgb&w=900') !important;
  background-position:36% center !important;
}
.bigcrack .symptom-photo{
  background-image:url('https://images.pexels.com/photos/7717787/pexels-photo-7717787.jpeg?auto=compress&cs=tinysrgb&w=900') !important;
  background-position:72% center !important;
  transform:none !important;
  filter:contrast(1.12) !important;
}
.seal .symptom-photo{
  background-image:
    linear-gradient(90deg,transparent 46%,rgba(35,42,48,.95) 46%,rgba(35,42,48,.95) 54%,transparent 54%),
    url('https://images.pexels.com/photos/7717787/pexels-photo-7717787.jpeg?auto=compress&cs=tinysrgb&w=900') !important;
  background-position:center !important;
  filter:grayscale(.55) contrast(1.05) !important;
}
.peeling .symptom-photo{
  background-image:url('https://images.pexels.com/photos/5641337/pexels-photo-5641337.jpeg?cs=srgb&fm=jpg') !important;
  background-position:center !important;
}
.moss .symptom-photo{
  background-image:url('https://images.pexels.com/photos/7998319/pexels-photo-7998319.jpeg?cs=srgb&fm=jpg') !important;
  background-position:center !important;
}
.thumb-estimate{
  background-image:url('https://images.pexels.com/photos/8970693/pexels-photo-8970693.jpeg?auto=compress&cs=tinysrgb&w=1200') !important;
  background-position:center !important;
}
.thumb-paint{
  background-image:url('https://images.pexels.com/photos/1669754/pexels-photo-1669754.jpeg?cs=srgb&fm=jpg') !important;
  background-position:center !important;
}
.hero-bg{
  opacity:.95;
  filter:saturate(.96) contrast(1.02);
}
.photo-note{
  margin:12px 0 0;
  color:#748797;
  font-size:10px;
  line-height:1.65;
}
@media(max-width:620px){
  .hero-bg{
    opacity:.68 !important;
    background-position:68% center !important;
  }
  .hero::after{
    background:linear-gradient(180deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.84) 54%,rgba(255,255,255,.42) 100%) !important;
  }
  .hero h1{
    font-size:35px !important;
    line-height:1.3 !important;
    letter-spacing:.005em !important;
  }
  .hero-lead{
    max-width:96% !important;
    font-size:14px !important;
    line-height:1.9 !important;
  }
  .symptom-photo{height:128px !important}
  .article-thumb{height:112px !important}
}

/* v7.2 — symptom photos corrected */
.hairline .symptom-photo{
  background-image:url('https://images.pexels.com/photos/8996664/pexels-photo-8996664.jpeg?auto=compress&cs=tinysrgb&w=900') !important;
  background-position:center !important;
  filter:none !important;
}
.bigcrack .symptom-photo{
  background-image:url('https://images.pexels.com/photos/14645718/pexels-photo-14645718.jpeg?auto=compress&cs=tinysrgb&w=900') !important;
  background-position:center !important;
  filter:none !important;
}
.seal .symptom-photo{
  background-image:url('https://commons.wikimedia.org/wiki/Special:Redirect/file/111_s_wacker_dr_chicago_1.jpg') !important;
  background-position:center !important;
  filter:none !important;
}
.moss .symptom-photo{
  background-image:url('https://images.pexels.com/photos/11798145/pexels-photo-11798145.jpeg?auto=compress&cs=tinysrgb&w=900') !important;
  background-position:center !important;
  filter:none !important;
}

/* ===== v7.3 symptom UX ===== */
.symptom-photo{position:relative;overflow:hidden}
.symptom-photo::after{
  position:absolute;left:10px;bottom:10px;
  padding:5px 9px;border-radius:999px;
  background:rgba(255,255,255,.92);
  box-shadow:0 2px 10px rgba(8,35,58,.12);
  font-size:11px;font-weight:800;color:#0b3c61;
}
.hairline .symptom-photo::after{content:"細い線状のヒビ"}
.bigcrack .symptom-photo::after{content:"口が開いたヒビ"}
.seal .symptom-photo{
  background-image:
    linear-gradient(rgba(0,0,0,0),rgba(0,0,0,0)),
    url('https://images.pexels.com/photos/1890416/pexels-photo-1890416.jpeg?auto=compress&cs=tinysrgb&w=900') !important;
  background-position:center !important;
}
.seal .symptom-photo::after{content:"外壁材の継ぎ目（目地）"}
.moss .symptom-photo::after{content:"緑・黒っぽい付着"}
.peeling .symptom-photo::after{content:"塗膜がめくれる"}
.chalking .symptom-photo::after{content:"触ると白い粉"}

.symptom-guide{
  margin:28px 0 36px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
.symptom-guide-card{
  border:1px solid #dbe5ec;border-radius:18px;background:#fff;overflow:hidden;
  box-shadow:0 8px 24px rgba(12,45,69,.06);
}
.symptom-guide-photo{
  height:210px;background-size:cover;background-position:center;position:relative;
}
.sg-hair{background-image:url('https://images.pexels.com/photos/8996664/pexels-photo-8996664.jpeg?auto=compress&cs=tinysrgb&w=1000')}
.sg-wide{background-image:url('https://images.pexels.com/photos/14645718/pexels-photo-14645718.jpeg?auto=compress&cs=tinysrgb&w=1000')}
.sg-joint{background-image:url('https://images.pexels.com/photos/1890416/pexels-photo-1890416.jpeg?auto=compress&cs=tinysrgb&w=1000')}
.sg-label{
  position:absolute;left:12px;bottom:12px;background:rgba(255,255,255,.94);
  color:#0a3b5e;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:800;
}
.symptom-guide-body{padding:18px}
.symptom-guide-body h3{margin:0 0 7px;font-size:19px;color:#0a3655}
.symptom-guide-body p{margin:0;color:#627585;line-height:1.75;font-size:14px}
.symptom-guide-body .look{
  display:block;margin-top:12px;padding-top:12px;border-top:1px solid #e7edf1;
  color:#153f5e;font-size:13px;font-weight:700;
}
.joint-callout{
  display:flex;gap:16px;align-items:center;margin:24px 0 34px;padding:18px;
  border-radius:18px;background:#eef6fb;border:1px solid #d7e6f0;
}
.joint-callout strong{display:block;color:#0a3655;font-size:17px;margin-bottom:5px}
.joint-callout p{margin:0;color:#607484;line-height:1.75;font-size:14px}
.article-v73 .learning-summary,.article-v73 .edu-diagram,.article-v73 .crack-types{display:none!important}
.article-v73 .lead{font-size:17px;line-height:1.9}
.article-v73 h1{max-width:850px}
.quick-check{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0 30px;
}
.quick-check div{padding:16px;border:1px solid #dce7ed;border-radius:14px;background:#fff}
.quick-check b{display:block;color:#0a3655;margin-bottom:5px}
.quick-check span{font-size:13px;line-height:1.7;color:#647786}
.symptom-list-v73{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:22px 0 30px;
}
.symptom-list-v73 .item{display:flex;gap:12px;padding:16px;border-radius:14px;border:1px solid #dfe8ee;background:#fff}
.symptom-list-v73 .num{
  flex:0 0 30px;height:30px;border-radius:50%;display:grid;place-items:center;
  background:#eaf3f9;color:#0c446c;font-weight:800;
}
.symptom-list-v73 b{display:block;color:#0a3655;margin-bottom:4px}
.symptom-list-v73 p{margin:0;color:#667887;font-size:13px;line-height:1.65}
@media(max-width:700px){
  .symptom-guide{grid-template-columns:1fr;gap:14px}
  .symptom-guide-photo{height:190px}
  .quick-check{grid-template-columns:1fr}
  .symptom-list-v73{grid-template-columns:1fr}
  .article-v73 .lead{font-size:15px}
}

/* ===== v7.4 crack visibility + article header fix ===== */

/* Clear, high-contrast crack photos */
.hairline .symptom-photo,
.sg-hair{
  background-image:url('https://images.pexels.com/photos/10682524/pexels-photo-10682524.jpeg?auto=compress&cs=tinysrgb&w=1000') !important;
  background-position:center !important;
  filter:contrast(1.18) brightness(.96) !important;
}
.bigcrack .symptom-photo,
.sg-wide{
  background-image:url('https://images.pexels.com/photos/7794437/pexels-photo-7794437.jpeg?auto=compress&cs=tinysrgb&w=1000') !important;
  background-position:center !important;
  filter:contrast(1.08) !important;
}

/* Keep labels readable over close-up photos */
.hairline .symptom-photo::after,
.bigcrack .symptom-photo::after{
  background:rgba(255,255,255,.96) !important;
  box-shadow:0 3px 12px rgba(0,0,0,.18) !important;
}

/* Article page header: match homepage proportions */
.v7-header{
  background:#fff;
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:40;
}
.v7-header .header-row{
  min-height:78px;
}
.v7-brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.v7-logo{
  display:block;
  width:44px;
  height:44px;
  flex:0 0 44px;
  color:var(--navy);
}
.v7-logo svg{
  display:block;
  width:44px !important;
  height:44px !important;
  max-width:44px !important;
  max-height:44px !important;
}
.v7-brand > span:last-child{
  display:flex;
  flex-direction:column;
  line-height:1.2;
}
.v7-brand strong{
  font-family:"Yu Mincho","Hiragino Mincho ProN",serif;
  color:var(--navy);
  font-size:21px;
  letter-spacing:.08em;
  white-space:nowrap;
}
.v7-brand small{
  margin-top:4px;
  color:#607587;
  font-size:10px;
  white-space:nowrap;
}
.menu-label{
  margin-left:auto;
  font-size:13px;
  font-weight:800;
  color:var(--navy);
  white-space:nowrap;
}
.ad-disclosure{
  border-bottom:1px solid var(--line);
  background:#f7fafc;
  color:#4c6173;
  font-size:12px;
  padding:8px max(20px,calc((100vw - 1180px)/2));
}

/* Make crack photos larger inside article */
.article-v73 .symptom-guide-photo{
  height:260px;
  background-size:cover;
}

/* More obvious comparison wording */
.crack-visual-note{
  margin:8px 0 26px;
  padding:12px 14px;
  border-radius:12px;
  background:#f2f7fb;
  color:#526c7f;
  font-size:13px;
  line-height:1.7;
}

@media(max-width:620px){
  .v7-header .header-row{min-height:68px}
  .v7-logo,
  .v7-logo svg{
    width:38px !important;
    height:38px !important;
    max-width:38px !important;
    max-height:38px !important;
    flex-basis:38px;
  }
  .v7-brand strong{font-size:18px}
  .v7-brand small{font-size:9px}
  .menu-label{font-size:13px}
  .ad-disclosure{font-size:11px;padding:8px 14px}
  .article-v73 .symptom-guide-photo{height:220px}
}

/* ==========================================================
   Shared shell and article template
   One reusable system for every page added after v7.4.
   ========================================================== */
body{overflow-wrap:anywhere}
.site-shell-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(13,53,89,.04);
  backdrop-filter:blur(12px);
}
.site-shell-header .header-row{min-height:78px}
.site-shell-header .brand{min-width:240px;text-decoration:none;color:var(--ink)}
.site-shell-header .brand::before{content:none}
.site-shell-header .brand-mark{
  display:block;
  flex:0 0 44px;
  width:44px;
  height:44px;
  padding:0;
  border-radius:0;
  background:none!important;
  box-shadow:none!important;
  color:var(--navy);
}
.site-shell-header .nav{display:flex;gap:clamp(16px,2.1vw,30px)}
.site-shell-header .nav a{color:var(--ink);text-decoration:none}
.menu-toggle{
  display:none;
  align-items:center;
  gap:9px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  color:var(--navy);
  padding:9px 13px;
  font:inherit;
  font-size:12px;
  font-weight:800;
  letter-spacing:.06em;
  cursor:pointer;
}
.menu-toggle-icon,.menu-toggle-icon::before,.menu-toggle-icon::after{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:currentColor;
  content:"";
  transition:transform .2s ease;
}
.menu-toggle-icon{position:relative}
.menu-toggle-icon::before{position:absolute;top:-6px}
.menu-toggle-icon::after{position:absolute;top:6px}
.menu-toggle[aria-expanded="true"] .menu-toggle-icon{background:transparent}
.menu-toggle[aria-expanded="true"] .menu-toggle-icon::before{top:0;transform:rotate(45deg)}
.menu-toggle[aria-expanded="true"] .menu-toggle-icon::after{top:0;transform:rotate(-45deg)}
.mobile-menu{display:none;background:#fff;border-top:1px solid var(--line)}
.mobile-menu[hidden]{display:none}
.mobile-menu-inner{display:grid;padding:8px 0 14px}
.mobile-menu a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:48px;
  border-bottom:1px solid #edf2f5;
  color:var(--navy);
  font-size:14px;
  font-weight:800;
  text-decoration:none;
}
.mobile-menu a::after{content:"›";font-size:20px;font-weight:400}
.site-adbar{border-bottom:1px solid var(--line);background:#f7fafc;color:#4c6173;font-size:12px}
.site-adbar .container{display:flex;align-items:center;gap:8px;padding:8px 0}
.article-page main{min-width:0}
.article-page .article-template{
  width:min(100%,780px);
  min-width:0;
  color:var(--ink);
}
.article-page main>.article-template{width:min(780px,calc(100% - 40px));margin:0 auto}
.article-template h1{color:var(--navy);font-family:"Yu Mincho","Hiragino Mincho ProN",serif;line-height:1.38}
.article-template h2{color:var(--navy);line-height:1.5}
.article-template table{display:table;width:100%;max-width:100%;table-layout:fixed}
.article-template th,.article-template td{overflow-wrap:anywhere;word-break:normal}
.article-template .btn,.article-template .cta{max-width:100%;white-space:normal;text-align:center}
.article-template iframe,.article-template video,.article-template svg{max-width:100%}
.article-template .symptom-guide-photo{max-width:100%}

@media(max-width:1000px){
  .site-shell-header .nav{display:none}
  .menu-toggle{display:inline-flex;margin-left:auto}
  .mobile-menu:not([hidden]){display:block}
}
@media(max-width:620px){
  .container,.wrap{width:min(100% - 28px,1180px)}
  .site-shell-header .header-row{min-height:66px;gap:12px}
  .site-shell-header .brand{min-width:0;gap:9px}
  .site-shell-header .brand-mark{width:36px;height:36px;flex-basis:36px}
  .site-shell-header .brand-name{font-size:18px;letter-spacing:.08em;white-space:nowrap}
  .site-shell-header .brand-sub{font-size:9px;margin-top:2px;white-space:nowrap}
  .menu-toggle{padding:8px 10px}
  .menu-toggle-label{font-size:0}
  .menu-toggle-label::after{content:"MENU";font-size:11px}
  .site-adbar{font-size:11px}
  .site-adbar .container{padding:7px 0}
  .article-page main>.article-template{width:min(100% - 28px,780px)}
  .article-page .article-template{font-size:15px;line-height:1.82}
  .article-template h1{font-size:clamp(28px,8vw,34px);overflow-wrap:anywhere}
  .article-template h2{font-size:23px;margin-top:40px}
  .article-template h3{font-size:19px}
  .article-template .cta-box{padding:24px 18px;border-radius:16px}
  .article-template table{font-size:12px}
  .article-template th,.article-template td{padding:9px 7px}
  .article-template .article-grid,.article-template .grid-3{grid-template-columns:1fr}
  body.menu-open{overflow:hidden}
}
@media(max-width:370px){
  .site-shell-header .brand-sub{display:none}
  .site-shell-header .brand-name{font-size:17px}
}
/* END SHARED SHELL */